Many lethal genetic disorders such as CF, Huntington’s, sickle cell anemia, Tay Sach’s, etc., persist in the human genome. How have these genes survived so many millennia of evolution (why didn’t they die out)?​

Answers

Answer 1

They've been under the purview of balancing selection. This type of selection occurs when two alleles – one being the harmful variant and the other being the beneficial variant – both confer some sort of benefit in the presence of each other. This can work in two ways. Sometimes the balance of deadly and beneficial alleles can create a balance in the population, allowing for genes to persist over time. In other cases, the lethal genes can be beneficial if there is an environmental change and the deadly gene can offer protection from the new environment. Both of these scenarios create a balance of selection, allowing for the persistence of the gene over time. In some cases, the lethal genes are essential for the maintenance of certain gene complexes and, if lost, could result in decreased fitness. This type of selection is known as evolutionary pressure and it can also contribute to the longevity of certain genes. A third possibility is that some of the genes simply survive due to random genetic drift.


Related Questions

Use the information in the articles and in the introduction text to explain how gene therapy increase the probability of changing the inheritance of desired traits in people

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According to the information in the articles and in the introduction text,  gene therapy increases the probability of changing the inheritance of desired traits in people by improving the likelihood of a desired trait appearing in the offspring.

What is gene therapy?

Gene therapy is a branch of medicine that focuses on altering a cell's genetic makeup to have a therapeutic impact or to treat a disease by replacing or repairing damaged genetic material.

Gene therapy improves the likelihood of desirable traits and attempts to treat illness or strengthen your body's resistance to illness by replacing a damaged gene or adding a new gene.

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Quorum-sensing contributes to the ability of bacterial colonies to congregate into nearly solid masses which act as barriers to effective decontamination and sterilization called:

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Biofilms are formed when bacteria congregate into a nearly solid mass. This occurs when bacteria use quorum sensing to communicate with each other and create pathways for cells to attach to and form a matrix.

The matrix shields the cells from external forces and helps to protect the bacteria from antibiotics, desiccation, and extreme temperatures. Biofilms can form on just about any surface, including medical and surgical instruments, water pipes, and even on the surfaces of plants and animals.

The formation of biofilms makes it difficult to decontaminate and sterilize, since the bacteria are protected within the matrix and can withstand harsh chemicals and extreme temperatures. Biofilms are also highly resistant to antibiotics, making them difficult to eradicate.

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A condyle differs from an epicondyle in that the condyle ______. A) is often flat, whereas an epicondyle is round. B) is an attachment site for muscle

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A condyle differs from an epicondyle in that the condyle helps form a joint. So the correct option is C.

Condyle and Epicondyle both refer to the part of long bones in animals. The smooth surface at the end of the bone which helps in the formation of a joint is called condyle however,

The Epicondyle is a rounded protuberance at the end of a bone which facilitates the attachment of ligaments, muscles and tendons.

Where condyle forms a smooth surface, epicondyle usually leads to rough projections.

Medial and lateral condyle are some examples for former while medial and lateral condyle of femur and humerus are some examples of epicondyle structure in bone.

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Full question: A condyle differs from an epicondyle in that the condyle ________

A) helps form a joint.

B) is a raised area above a joint.

C) is often flat, whereas an epicondyle is round. D) is an attachment site for muscles.

what is the difference between the full classification of organisms and their scientific names?

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Full categorization includes all levels (kingdom, phylum, class, order, genus, and species), however only the genus and species are included in the scientific name.

While the order and family of an organism are included in its scientific name, only the species name is included in the entire categorization. More types of organisms will be included in the entire categorization of organisms than are indicated by their scientific titles.

The genus and species names that make up an organism's binomial name are typically used to identify it. The name of the species is not capitalized, although the name of the genus is always. Italics or underlining are always used for both names. While species names cannot be shortened to just one letter, genus names can.

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Why is a male progeny with a calico coat so rare?

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For a male cat to have the calico pattern, the cat must have three sex chromosomes. Two X's and one Y's. This phenomenon can occur in both humans and animals, and in both cases is known as Klinefelter's syndrome.

The calico fur pattern is predominantly white, with other her two colored spots. Also, since a cat's coat color is linked to her X chromosome in her cells, calico cats rarely become male. Male cells acquire only one X chromosome. That is, males usually only have one color. Out of 3,000 calico cats born, only one is male. These cats are so rare that they are often referred to as feline "unicorns."

There is no locus for orange on the Y chromosome, so a normal XY male of his cannot have both orange and non-orange genes, usually resulting in tortoiseshell or calico .

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Question 1 of 10
What about Earth allows it to maintain bodies of water?
OA. Strong magnetic field
OB. Strong gravity
O C. Lunar tides
OD. Plate movements

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i think the answer would be C. lunar tides

What are the conclusion from Mendelian experiment?

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Mendel gathered his data for tens of thousands of plants before coming to the conclusion that the traits might be divided into expressed and latent features. These traits were described by him as being dominant and recessive, respectively. In a hybridization, dominant features are those that are passed on unaltered. 

The three laws of dominance, independent assortment, and segregation serve as a summary of all the findings of Mendel's experiment. He proposed that each gene be passed down to the organisms twice, once from each parent. In their gametes, organisms only share one copy of each gene. In his opinion, traits are discretely inherited from each parent, one at a time.

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explain the characteristics of living things

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Living things have a number of characteristics that set them apart from nonliving things. These characteristics include Organization, Metabolism, Growth and development, Response to stimuli, Reproduction, Homeostasis, Adaptation.

Organization:

Living things are highly organized, with a clear hierarchy of structures from the smallest (such as cells) to the largest (such as entire organisms).

Metabolism:

Living things are able to convert energy from their environment into forms that they can use to sustain themselves. This process is known as metabolism.

Growth and development:

Living things grow and change over time. This can involve physical changes, such as getting taller or developing new body structures, or it can involve changes in behavior or function.

Response to stimuli:

Living things are able to sense and respond to stimuli in their environment. This can involve physical responses, such as moving toward or away from a stimulus, or it can involve changes in behavior or function.

Reproduction:

Living things are able to reproduce, either sexually or asexually, in order to create new individuals of their own kind.

Homeostasis:

Living things are able to maintain a stable internal environment, even when the external environment is changing. This process is known as homeostasis.

Adaptation:

Living things are able to adapt to their environment in order to survive and thrive. This can involve physical adaptations, such as developing new body structures or behaviors, or it can involve genetic adaptations, such as the evolution of new traits.

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Living things have the following characteristics: growth, movements, respiration, excretion, nutrition, and reproduction.

GROWTH: All living things grow in some way or another. Be it an increase in the number of cells due to cell division, or the proper organization of the cell, all living things show some sort of growth.

MOVEMENT: Living things are mobile in nature. They show some sort of movement in their lifetime.

RESPIRATION: Living things respire. it is a chemical reaction that causes energy to be released from the food that they intake.

EXCRETION: It is the process of excreting or removing the products that are formed during the breakdown of food that the being does not require.

NUTRITION: It is the process in which the living thing intakes nutrition. It can happen in different ways in different beings.

REPRODUCTION: It is the process in which the organism creates its progeny and passes on genetic information to it. It has various levels of complexity depending on the organism.

Where does the light reaction occur in plants?

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The light reactions of plants are the photochemical reactions that take place in the thylakoid membrane of chloroplasts and convert light energy into chemical energy in the form of ATP and NADPH.

Light reactions in plants occur in the thylakoid membranes of organelles referred to as chloroplasts. The light processes are mostly controlled by photosystems, sizable complexes of proteins and pigments (light-absorbing molecules) that are designed to capture light. The light reactions processes include the plants division of water into oxygen, protons, and electrons, and take place in the chloroplast thylakoid membrane. The light reactions occur in the chloroplast thylakoid membrane and involve the splitting of water into oxygen, plants,protons and electrons.

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For this assignment, you will investigate a timeline of warnings and decisions made during the Hurricane Katrina disaster. Then you will research hurricane forecasting and advanced warning systems and write a brief essay to report your findings

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The timeline of warnings and decisions made during the Hurricane Katrina disaster begins on August 24, 2005 when the National Hurricane Center issued the first advisory on Hurricane Katrina. This advisory marked the beginning of the warning system and the start of the decision-making process. As the storm moved closer to the Gulf Coast, the warnings increased in intensity and the mandatory evacuation orders were issued. On August 29, 2005, the hurricane made landfall, causing widespread destruction and loss of life.

Essay Hurricane Forecasting and Advanced Warning Systems and write a short essay to report your findings.

In the aftermath of the disaster, it became clear that the advanced warning systems and decision-making processes used by government officials were inadequate. The National Hurricane Center had issued warnings and advisories weeks in advance, but these warnings were not heeded or acted upon. As a result, the impact of the storm was much more severe than it could have been.

To prevent similar disasters in the future, advanced warning systems and decision-making processes must be improved. One of the most important advances in hurricane forecasting is the use of satellite data to track storms and predict their paths. This data can be used to issue more accurate warnings and advisories so that the public can be better prepared for a hurricane’s arrival.

In conclusion, the timeline of warnings and decisions made during the Hurricane Katrina disaster reveals the inadequacies of the advanced warning systems and decision-making processes used by government officials. To prevent similar disasters in the future, improvements must be made to both the warning systems and the decision-making processes used by government officials.

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What was the end result of Mendel's experiment?

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Mendel's research led to the discovery of the inheritance laws that are now referred to as Mendel's laws of inheritance. In order to conduct his tests, he true-bred pea plants for particular traits like seed color and seed shape.

Then he crossed these plants, watching the traits of the progeny. Mendel's investigations led him to the conclusion that discrete "factors" (now known as genes) transferred from parent to child are what determine inheritance. For each attribute, each parent passes down one gene (allele) to their kids.

When the alleles of a trait are different, one allele will be dominant and the other will be recessive. The dominant allele will be expressed in the phenotype, while the recessive allele will not be.

The probability of an offspring inheriting a specific allele from a parent is 50%. Mendel's laws of inheritance laid the foundation for the field of genetics and provided a framework for understanding how traits are passed down from one generation to the next.

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Which Process occuaring in plants provides energey to other organisams in the ecosystem?

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Photosynthesis

Plants turn water, sunlight, and CO2 into carbon compounds.

They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel.

During which stage of the cell cycle does the cell condense chromosomes and break down the nuclear envelope? anaphase prophase metaphase telophase

Answers

During prophase of the cell cycle, the cell condenses its chromosomes and breaks down the nuclear envelope.

A cell cycle, also known as a cell-division cycle is defined as a series of events which take place in a cell as it is growing and dividing in order to form two daughter cells. A cell cycle has a few different stages namely prophase, metaphase, anaphase and telophase.

Prophase is the first stage of both mitosis as well as meiosis. In the prophase, the chromatin which is present in the cell is condensed in order to form chromosomes. The nuclear envelope, which is the membrane which surrounds the nucleus of the cells also starts breaking done.

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This passage describes the antenna type trait in fruit flies:
Most fruit flies have a pair of antennae on their head. But, some flies appear to have an extra pair of legs on their head instead! These flies have a mutation, or change, in a gene that affects body development. This mutation makes the cells in the fly's head form mutated antennae that are like legs.
In a group of fruit flies, some individuals have mutated antennae and others have normal antennae. In this group, the gene for the antenna type trait has two alleles. The allele A is for mutated antennae, and the allele a is for normal antennae.
A certain fruit fly from this group has normal antennae. This fly has two alleles for normal antennae.
Based on this information, what is this fruit fly's genotype for the antenna type gene?

Answers

the genotype for the fruit fly is aa

The average rate of primary production in the open ocean is 125 gC/m2/yr. In the most productive ecosystems such as algal beds and coral reefs, the average production is 2000 gC/m2/yr. How many years would it take to accumulate 2000 gC/m2 on the deep-sea floor in the open ocean

Answers

Higher chlorophyll fixations and overall higher efficiency are seen on the equator, along the coasts (particularly eastern edges), and in the high-scope sea.

Makers. Essential makers — including microscopic organisms, phytoplankton, and green growth — structure the most minimal trophic level, the foundation of the amphibian food web.

In spite of the fact that they possess under two percent of the seas, the beachfront upwelling regions in the eastern pieces of the Pacific and Atlantic Seas are among the organically most useful marine regions around the world.

The highest zone, from the ocean surface to a profundity of 200 m (656 ft), is known as the epipelagic or photic zone. A lot of accessible daylight makes this the most useful zone of the sea.

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explain the stages of respiration in 3 steps (you may include more). You must use the following vocabulary words in your written explanations and underline them: oxygen, carbon dioxide, raw material, products, glucose, diffuse. make sure to define and state oxygen's role in the process and explain carbon dioxide and why it's a by-product. in addition, you must talk about fermentation and how it related to cellular respiration

Answers

The stages of respiration in 3 steps include the following below:

GlycolysisThe citric acid (TCA) or the Krebs cycleThe electron transport chain.

What is Respiration?

This is referred to as a metabolic process in which the living cells of an organism obtains energy in the form of ATP by taking in oxygen and liberating carbon dioxide.

The lungs is referred to as the central organ for respiration in humans and it involves the process in which oxygen is diffused into the lungs and releasing carbon dioxide as the by-product as result of it being breathed out of the body.

Fermentation takes place under anaerobic conditions which means with no or insufficient amount of oxygen being present and it does not fully oxidize glucose instead, small, reduced organic molecules are produced as waste.

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Visit a fish farm in fish breeding season and note the following

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The breeding season for fish varies depending on the species and the region.

1) Varieties of fish in the ponds: Depending on the fish farm, different varieties of fish may be present in the ponds. Common varieties may include tilapia, catfish, trout, and salmon.

2) Types of Ponds: The type of pond used will depend on the type of fish being raised. Common ponds include earthen ponds, tanks, raceways, and cages.

3) Feed Ingredients: The type of feed ingredients used in the farm will depend on the type of fish being raised. Common feed ingredients may include fish meal, soybean meal, corn, wheat, and other grains.

4) Production Capacity: The production capacity of the fish farm can be determined by the size of the ponds, the number of ponds, and the number of fish in the ponds. It can also be determined by the amount of feed used and the amount of time the fish take to reach market size.

What is a Fish farm?

A fish farm is a water-based aquaculture facility designed to breed, raise, and harvest aquatic animals such as fish, crustaceans, mollusks, and aquatic plants. Fish farms are usually located in coastal areas or near large bodies of water such as rivers, lakes, or oceans. They are used to produce food for both human consumption and for sale in the aquarium trade.

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Complete question:

Visit a fish farm in fish breeding season and note the following:

(1) Varieties of fish in the ponds.

(2) Types of ponds.

(3) Feed ingredients being used in the farm.

(4) Find out what the production capacity of the farm is​.

What are the four features of bacteria?

Answers

Bacteria are single-celled organisms having membrane-attached cell organelles instead of a true nucleus. The reason why bacteria may survive in harsh settings is because:

Energy generating enzymes

Endospores

Cell wall

Cyst

The primary property of the bacteria is their ability to develop a cyst, which protects them from harmful environmental elements. For instance, the prokaryotic organism can survive in both hypertonic and hypotonic conditions because to its cell wall. The bacteria also make endospores, which let them tolerate extremely high temperatures. The bacteria create cold shock proteins that help them withstand freezing temperatures. Bacteria are single-celled creatures that lack a genuine nucleus in favour of membrane-bound cell organelles. Because of the following factors, bacteria can withstand trying conditions:

enzymes that generate energy

Endospores are a kind of cell wall tumour.

The primary trait of bacteria is their ability to generate spores or cysts, which protects them from severe environmental conditions. The bacteria may also live in extremely hot or cold environments. The bacteria also need food, light, and water to live. Some bacteria have the ability to photosynthesize or feed on other living organisms.

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The _____ of the respiratory system consists of a series of interconnecting cavities and tubes both outside and within the lungs that filter, warm, and moisten air and conduct air into the lungs.

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The conducting zone of the respiratory system is a series of interconnected cavities and tubes outside and inside the lungs that filter, warm, humidify, and direct air to the lungs.

The respiratory system functionally he can be divided into two zones. The conducting zone (nose to bronchioles) provides the conduction pathway for inspired gases and the respiratory zone (alveolar ducts to alveoli) where gas exchange takes place.

The conducting zone consists of all structures that allow airways to enter and exit the lungs.

Nasal cavity, pharynx, trachea, bronchi, and most bronchioli. The conducting zone, which includes everything from the nose to the smallest bronchiole, allows air to enter and exit the lungs. The respiratory zone includes respiratory bronchioles and alveoli, which move breathing gases, oxygen and carbon dioxide, into and out of the blood.

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how do structures in living organisms compared with structures of non-living things such as construction cranes

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Living things have the capacity to grow, procreate, and carry out metabolic processes. Biomolecules, the building blocks of living things, need energy to function.

They display the processes of breathing, digesting, movement, and excretion. These things are made of cells.

Ships, houses, and airplanes are examples of non-living things that do not develop or procreate. These substances are made of inorganic molecules and lack any vital metabolic processes for life. Non-living things do not contain any cells.

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Which instrument contours a band around the tooth to allow for minimal exposed cement at the margins

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The correct option is D ; Band-removing pliers , The Mathieu plier includes a rapid release locking and unlocking mechanism that is utilized for elastomeric ligature installation.

The bird beak, also known as the 139 plier, has pyramidal and conical beaks that are used to bend orthodontic wires.

Cements of Zinc Phosphate. Zinc phosphate cements are commonly used to cement orthodontic bands. Although certain encapsulated formulations are advertised, most of these cements are offered as hand-mixed powder-liquid systems.

Radiographs are an important diagnostic tool in identifying an orthodontic condition and a treatment plan. The panoramic (OPG) and cephalometric views are the two most frequent radiographs, albeit they are not exclusive.

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Full Question ;

Which instrument contours a bound around the tooth to allow for minimal exposed cement at the margins?

A)Band seater

B)Band pusher

C)Bird-beak pliers

D)Band-removing pliers

A deep indentation found along the medial plane that separates the right and left cerebral hemispheres is called the

Answers

The profound depression that partitions the two cerebral sides of the equator is known as the extraordinary longitudinal crevice. This depression partitions the frontal cortex into left and right parts along the longitudinal or sagittal plane.

It is partitioned into two sides of the equator, to be specific the right cerebral half of the globe and the left cerebral side of the equator. The profound space that isolates the two sides of the equator is known as a longitudinal crevice.

The average surface of the cerebral side of the equator is partitioned into internal and external zones by the cingulate sulcus. The internal zone is named as cingulate gyrus and is consistent with the para-hippocampal gyrus on the tentorial surface through the isthmus (5, 7).

The falx cerebri is a meningeal projection of dura in the cerebrum. It is a sickle-molded overlap of the dura mater situated at the midline between the two cerebral sides of the equator.

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Many scientists claim that the synthesis of the first organic molecules from inorganic precursors was possible because of the highly reducing atmosphere found on primitive Earth. Which of the following is an appropriate null hypothesis that could be used when investigating the claim

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An appropriate null hypothesis that might be used to test the claim is that the synthesis of organic molecules from inorganic molecules is conceivable both at the levels of atmospheric oxygen present today and on early Earth.

When investigating the possibility that life may have started on the planet, it is vital to take into account the concept that organic molecules can be created from inorganic ones both under conditions of current atmospheric oxygen levels and those present on primitive Earth.

In order to more thoroughly investigate the potential of life's genesis on Earth, this null hypothesis offers evidence that organic molecules can arise without the presence of life.

We can learn more about the many chemical processes and reactions used to create organic molecules by looking at them.

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What is carbon dioxide’s indirect effect on other species in a marine food chain?

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MARINE FOOD CHAIN

Carbon dioxide (CO2) has an indirect effect on other species in a marine food chain through its role in the process of photosynthesis. Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy, using CO2 and water as reactants. Oxygen is produced as a byproduct of photosynthesis.

In a marine food chain, photosynthesizing organisms, such as algae and seaweed, are primary producers. They form the base of the food chain, providing energy for other organisms, such as herbivores, which feed on them. Higher up the food chain, carnivores feed on herbivores and other carnivores, and so on.

The indirect effect of CO2 on other species in a marine food chain is through its role in photosynthesis, which provides the energy that forms the base of the food chain. If the concentration of CO2 in the water is too high, it can interfere with the process of photosynthesis, leading to reduced growth and productivity of photosynthesizing organisms. This can have cascading effects on the rest of the food chain, as the reduced availability of energy at the base of the food chain can lead to decreased population sizes and reproductive success of higher level consumers.

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The rise in the carbon dioxide dissolved in the waterbodies increases the temperature which results in the acidification of water pH.

What is acidification of the water bodies?

Acidification of the water bodies such as lakes, seas, and oceans due to an increase in the concentration of carbon dioxide is known as the acidification of the water bodies. The increase in atmospheric carbon dioxide is due emission of carbon dioxide from various human activities.

This carbon dioxide gets dissolved in the oceans and seas. The average measured pH of the oceans and seas is 8.1 which is alkaline in nature. Due to dissolved carbon dioxide, the pH gets diverted towards the left which is the acidic side.

Therefore, acidification affects marine life.

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Nucleus plays an important role in cellular reproduction and cellular functions

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It is true that nucleus plays an important role in cellular reproduction and cellular functions, but the reason given is not the correct explanation. The correct option is B.

What is nucleus?

In terms of genomics, a nucleus is the organelle within a cell that is membrane-enclosed and houses the chromosomes.

In the nucleus is genetic material. The DNA in the cell is primarily necessary for both cellular reproduction and cellular activities.

Proteins and DNA make up chromosomes, which are found in the nucleus. The information needed to organise and build cells is contained in DNA molecules.

The functioning DNA segments are referred to as genes. It has been discovered that chromatin material in a cell that is not being dispersed contains some DNA.

Thus, the correct option is B.

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Your question seems incomplete, the complete question is:

Assertion- Nucleus plays an important role in cellular reproduction and cellular functions.

Reasons- Nucleus contains chromosomes which are made up of DNA which contain information for constructing and organising cells.

a) If both Assertion and Reason are the true and Reason is the correct explanation of Assertion.

b) If both Assertion and Reason are true but the Reason is not the correct explanation of Assertion.

c) If Assertion is true but Reason is false.

d) If assertion is false but Reason is true.​

Cellulose could provide a widely available and cheap form of glucose, but humans cannot digest it. Why not

Answers

Cellulose could provide a widely available and cheap form of glucose, but humans cannot digest it due to the lack of the cellulase enzyme.

Cellulose is one of the most abundant organic compounds on Earth, making up the cell walls of plants. It is composed of glucose molecules linked together in a linear chain. This chain is very difficult for humans to digest, as our digestive system lacks the necessary enzymes to break down the bonds between the glucose molecules.

Cellulose is a complex carbohydrate, meaning it is composed of long chains of glucose molecules that are connected in a more intricate way than simple carbohydrates such as sucrose or fructose. This makes it more difficult for our digestive system to break down. Humans lack the enzyme called cellulase, which is necessary to break down the bonds between the glucose molecules in cellulose. Without this enzyme, our digestive system cannot access the glucose molecules in cellulose and therefore cannot use it as a source of energy.

Cellulose is not completely indigestible, however. Bacteria and some animals, such as cows and horses, are able to digest cellulose due to their possession of the cellulase enzyme. These animals are able to break down the bonds between the glucose molecules in cellulose and use the glucose as a source of energy.

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In the evolution of life on Earth, which one of the following traits must have evolved last (meaning most recently): O sexual reproduction; centromeres associated with DNA; O self-defense mechanisms; multicellularity; O locomotion; mitosis.

Answers

Pertaining to sexual reproduction. DNA mitosis, self-defense mechanisms, and multicellularity are all associated with centromeres.

What precisely is reproduction?

The process of creating offspring is called reproduction. The two basic types of reproduction are sexual and asexual. An creature that reproduces sexually is extremely varied and carries the genetic material of its two grandparents. Asexual reproduction, which involves each parent reproducing themselves, results in children that are genetically identical.

Explain it the action of procreating?

The process of creating new members of same species is called reproduction. An organism has two ways of reproducing: asexually and sexually. Merging both male and female gametes is not considered an instance of asexual reproduction. Bacteria, amoebas, and other amoeba exhibit this.

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Seeds are important to the reproduction of many kinds of plants. Some seeds, especially those dispersed by animals, are enclosed in a sweet, fleshy fruit. How would damage to the vascular tissue leading to a developing fruit affect the fruit?
A.Water loss from the fruit would happen at an increased rate.
B.The number of seeds enclosed in the fruit would decrease.
C.The amount of water and sugar stored in the fruit would decrease.
D.The raw materials needed for photosynthesis would not reach the fruit.

Answers

Damage to the vascular tissue leading to a developing fruit affect the fruit because the raw materials needed for photosynthesis would not reach the fruit, option D.

What is the function of vascular tissues in plants?

Vascular tissues are complex conducting tissues in higher plants made up of various cell and element types. Xylem and Phloem are the two main components of plant vascular tissue. These tissues are in charge of transporting water and nutrients in plants.

Damaged vascular tissue may cause the fruit to develop incompletely or not at all. When vascular tissues like xylem and phloem are damaged, the fruit does not fully develop because the food produced in the leaves does not reach the seed.

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What is the main cause of hereditary disease?

Answers

Answer:

Inherited disorders are caused by gene mutation. These include sickle cell anemia, hemophilia, color blindness.

Explanation:

What increases genetic variance?

Answers

The factors like genetic mutations, random mating, gene flow and genetic drift can increase genetic variance.

Genetic variations are the changes which occur in the genetic sequence of the DNA. These genetic variations are necessary as they allow the living beings to evolve and eventually survive. There are some factors which cause an increase in the genetic variation and they are genetic mutations, random mating, gene flow and genetic drift.

A genetic mutation is an alteration in the DNA sequence of a particular gene which causes a different product to form. This helps increase the genetic variance in organisms. Gene flow is defined as the movement of genes in and out of a particular population. In-flow of genes can help increase the genetic variation of individuals in that population. Genetic drift is the change in allelic frequency in a population by chance. Random mating is the mating of individuals that is not especially dictated by any social or genetic preference and leads to an increase in variation.

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At 10:00 a.m. two planes leave an airport. if the northbound plane flies at 280 mph and the southbound at 320 mph, at what time will they be 1,000 miles apart? which equation can be used to solve for t, the time it takes the planes to be 1,000 miles apart? How does Harburgs experience during the Great Depression differ from the experiences of most Americans? Why would a developer choose to store source code in Cloud Source Repositories? Choose all the answers that are correct (2 correct answers).A) To reduce workB) To have total control over the hosting infrastructureC) To keep code private to a GCP project Which of the following best state the theme or main idea of "The Handsomest Drowned Man in the World"? Name a pair of vertical angles and a pair of adjacent angles in each figure. approximately 90% of absorbed alcohol gets converted by processes in the ____ Can anyone solve this? In a random sample of 70 people, it was found that 44 of them were fans of the New York Yankees. What is the margin of error for the true proportion of all individuals who are fans of the New York Yankees? A. 0.0088 B. 0.058 C. 0.063 D. 0.116 E. 0.173 What is the setting of The Great Gatsby time? How many tens do u need to make 280 What are two reasons that farmers were able to makemore money growing wheat? Help pleaseeee What did the English Bill of Rights allow? 50 POINTS dont explain -A-B-C Which of the listed options is NOT an aspect of a typical feudalmanor?a. widespread literacy and lots of public education b. innovative farming practices like the three field system c. local religious officials, monasteries, priests, etc.d. self sufficiency and very little reliance on outside resources Colleen and Amy go shopping. The function below represents how much money each girl spent based on the number of hours they were shopping. If Colleen and Amy each go shopping for 3 hours, how much money did they spend together?p(x)3x^4=x^4-3x^2+5$32$86$248$302 SOME ONE HELP PLSSSSwhich number line represents all of the values of x for the equation x2=100?(picture below) The red line on this graph is y=-2x-1The dotted line is y=x.Write the equation of the inverse of this function What is the hypothesis of Mendel? The FBI uses the ________________ DNA fingerprint for its CODIS database. a. mtDNA c. Polymerase Chain Reaction b. y-chromosome d. Short Tandem Repeat Slope = -7; (4, -30) step by step