When cells divide during meiosis, homologous chromosomes separate
independently of each other and are randomly distributed to the gametes.
How does this process lead to genetic variability
Answers
During meiosis, gametes receive different combinations of genes, and the offspring resulting from fertilization has a unique set of chromosomes. After fecundation, independent assortment generates unique gene combinations in the new generation.
The independent assortment of homologous chromosomes leads to gamete containing different sets of genes.
During metaphase I of the meiotic cell division, homologous chromosomes line up at the equator plate of the cell in a random mode.
The consequence of this independent assortment is that gametes receive different gene combinations, which increase genetic variation in offspring and may eventually confer an evolutionary advantage.
The independent assortment of homologous chromosomes and the process of recombination by which non-sister chromatids interchange genetic material are well known to increase genetic variation in the resulting gametic (meiotic) cells.
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Related Questions
what is the difference between prokaryotic and eukaryotic cells
Answers
Answer:
Prokaryotes are organisms that consist of a single prokaryotic cell. Eukaryotic cells are found in plants, animals, fungi, and protists. They range from 10–100 μm in diameter, and their DNA is contained within a membrane-bound nucleus. Eukaryotes are organisms containing eukaryotic cells.
Which of the following is considered to be a human vestigial (unused) structure?
A. Eyebrow
B. Appendix
C. Pelvis
D. Chromosomes
Answers
Answer:
Appendix
Explanation:
Though new evidence has shown that our Appendix might not be so useless, we still generally consider it vestigial in school textbooks & by word of mouth.
Have a nice April Fool's lol.
1.
DNA has the limited ability to repair itself when damage
occurs. What might happen to cause damage to the DNA in a
cell?
Answers
The most significant consequence of oxidative stress in the body is thought to be damage to DNA. DNA may be modified in a variety of ways, which can ultimately lead to mutations and genomic instability. This could result in the development of a variety of cancers including colon, breast, and prostate. Here we discuss the various types of damage to DNA, including oxidative damage, hydrolytic damage, DNA strand breaks, and others.
Free earlobes are determined by a dominant allele. Attached earlobes are determined by a recessive allele. Tyler has free earlobes. His father has free earlobes but his mother has attached earlobes. What is Tyler’s genotype?
Answers
Why are phase changes considered physical and not chemical
changes?
Answers
Answer:
Phase changes are physical changes that take place when matter changes energy states, but chemical bonds are not broken or formed. ... The phase of a substance depends on the amount of energy the atoms contain. All atoms are in motion. The higher the temperature of an atom, the faster the motion
Can you guys help me???
Why does dna polymerase can't synthesize the ends of linear dna?
Answers
Answer:
DNA pol uses the energy provided by hydrolysis of the high-energy phosphate bond at the 5' end of the incoming nucleotide to add it to the 3' end of the growing DNA.Without the high-energy phosphate bond, the correct nucleotide can not be added.
Explanation:
How does a chemical equation with coefficients relate to the law of conservation of mass?
A.The total mass must remain constant in a chemical reaction with coefficients in order for a physical change to occur
B.The number of atoms of each element must remain the same before and after a reaction in order for mass of the products to be the same as the mass of the reactants
C.The total mass of the reactants cannot equal the total mass of the products
D.The number of atoms in each element must change after the reaction in order for the mass to remain constant
DO NOT GIVE A LINK TO THE ANSWER PLEASE
Answers
Answer:
Every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. ... Use coefficients of products and reactants to balance the number of atoms of an element on both sides of a chemical equation.
Explanation:
Name three large molecules that make up the bulk of the food humans eat, and identify the products of each one that result from digestion.
Answers
The body breaks down nutrients from food and drink into carbohydrates, protein, fats, and vitamins.
CARBOHYDRATES. Carbohydrates are the sugars, starches, and fiber found in many foods.
PROTEIN.
FATS.
VITAMINS.
Explanation:
I hope this is what your looking for. If not, let me know!
(this answer is from www.msdmanuals.com, turn this information into your own words. I am giving credit. :)
The three large molecules that make up the bulk of the food humans eat are:
CarbohydrateProteinFatsthe products of each one that result from digestion are;
Carbohydrate : Fructose, glucoseProtein : Amino acidFats:monoglycerides and fatty acids.large molecules are the giant molecules that is been found in our daily diet and this includes Carbohydrate, Protein, Fats.
However after digestion of these large molecules after enzymes have reacted on it they will give the products which was listed above.
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The diagram below shows a model of the movement of two tectonic plates. When the plates collide, one plate often moves below the other plate. The rising magma that can result from this type of plate movement may produce -
fossil layers
volcanic islands
deep- sea sediment
seafloor spreading
Answers
Answer:
volcanic islands
Explanation:
As per the diagram given below that shows the model of the plate tectonics and shows the movement of the two plates one plate collides with another and the there moves under due to subduction.
The magma rises and can lead to the formation of volcanic islands. The island is a geologically active part of the plate that rises upwards and is formed by the process of sedimentation.Hence the option B is correct.
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brainly.com/question/22661755If stripped fish become more visible to predators, their fitness for their environment will decrease. Over time ____ will favor solid-colored fish and their numbers will grow.
Answers
Answer:
predators
Explanation:
Which type of plant tissue contains open vessels that transport water, ions, minerals, and nutrients throughout a plant?
o dermal
ground
ОО
meristematic
vascular
Answers
Vascular tissue contains open vessels that transport water, ions, minerals, and nutrients throughout a plant.
Vascular plant tissues in higher plants can be divided into phloem and xylem.These tissues (vascular) are fundamental to transport water and solutes to all tissues of a plant.Conversely, meristematic tissue is a type of tissue composed of undifferentiated cells.In conclusion, vascular tissue contains open vessels that transport water, ions, minerals, and nutrients throughout a plant.
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Refer to the graphs below. Determine the type of forest these moths inhabit. Use evidence from the Peppered Moth simulation and the graphs as well as scientific reasoning to support your response. l
Answers
Answer:good right
Explanation:
A friend believes that studying the genetics of dead organisms offers little benefit to mordern-day humans. Do you agree with this statement
Answers
Answer: Yes
Explanation:
This is because the study of genetics help to reveal the duplicating of DNA and why people behave the way they are through the traits the acquire from ancestry.
Studying the genetic ancestry of humans reveal why some people are at higher risk or prone to some particular diseases because of what has been passed to them and also finding genes related to certain diseases will help to create new drugs and therapies.
Which of the following is not a cause of mutation?
A. Errors during replication
B. UV radiation
C. Oncogenes
D. Harmful chemicals
Answers
Explanation: all the other answer choices cause mutations
Oncogenes is not a cause of mutation.
What are Oncogenes?An oncogene is a gene that has the potential to cause cancer. In tumor cells, these genes are often mutated, or expressed at high levels. Most normal cells will undergo a programmed form of rapid cell death when critical functions are altered and malfunctioning. They regulate cell proliferation, growth, and differentiation, as well as control of the cell cycle and apoptosis.
Therefore, (C) option is the correct answer.
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The brain signals the body of an animal to move by transmitting electrical impulses through the neurons. An animal is then able to walk or run because -
Answers
Answer:
The muscles of the muscular system work with the bones of the skeletal system.
Explanation: The musculoskeletal system is what enables movement.
(I hope this helps, you can also search up the same question maybe someone also answered it.)
:)
An animal is then able to walk or run because the muscles of the muscular system work with the bones of the skeletal system. The musculoskeletal system is what enables movement.
What is skeletal system?The skeletal system of the body has been composed of the bones and cartilage and they will perform many different types of function in the body of the organism. The cartilages along with the bones form the structural framework of the body. It also helps in the performing locomotory functions of the body. The brain signals the body of an animal to move by transmitting electrical impulses through the neurons.
It has the skeletal system of the body that helps in the walking, bending, sitting and as well as other movements of he body. It has been also serves as the barrier between the outer environment and internal organs and protects them from any exertion and shock.
Therefore, An animal is then able to walk or run because the muscles of the muscular system work with the bones of the skeletal system. The musculoskeletal system is what enables movement.
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What other applications of DNA sequences can you think of?
No link plz :)
Answers
Answer:
Molecular biology.
Evolutionary biology.
Metagenomics.
Virology.
Medicine.
Forensics.
Discovery of DNA structure and function.
RNA sequencing.
Explanation:
there u go :D, u said please so i had to.
What can we learn about the organisms on this chart? *
A. Some of the animals are monkeys
B. They are each Classified under a different Kingdom
C. They have the same scientific name
D. They are closely related
Answers
I hope this helps you !
Which part of a plant absorbs nutrients and water
A. Flower
B. fruit
C. root
D. Leaf
E. seed
F. stem
Answers
Answer:
C. root
The part of the plant that absorbs nutrients and water is root.
Hope it will help :)
Answer:
the root
Explanation:
there are 12% cytosines in a DNA molecule , what percentage of thymines
Answers
Answer:
To calculate the percentage of thymine we need to use Chargaff's rule:
Chargaff's rules state that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine
A+G=T+C
A=T
C=G
100%-(2x12)=2T
T=(100%-24%)/2
T=38%
State ONE reason why muscle tissues are likely yo be affected by mitochondrial diseases.
(PLEASE ANSWER ASAP DUE VERY SOON, 15 POINTS!!)
Answers
Answer:
Mitochondria give more than 90% of the energy used by the body's tissues; mitochondrial disorders are caused by a lack of energy for cells of the body
Explanation:
Please Help Quickly!!!
A human cell contains 46 chromosomes. If the cell undergoes mitosis and divides, how many chromosomes will each daughter cell contain?
a. 12
b. 23
c. 46
d. 92
Answers
Answer:
c
Explanation:
2. Apply knowledge and understanding of Mendelian genetics to suggest solutions to problems set
in familiar situations (1-2).
a. Determine the phenotype for each genotype using the information provided about flower color:
I
If green seed is dominant to yellow seed, then
GG______ Gg_______ gg______
Answers
Answer:
GG phenotype - Green
Gg phenotype - Green
gg phenotype - Yellow
1. A student is completing a Punnett square for a trait (X/x) that is autosomal and inherited by the dominant allele. The father does not have it (xx), but the mother does (Xx). If they had two children, a son and a daughter, what would the completed Punnett square look like (i.e., would the son have the trait, would the daughter have the trait)?
A. Both children would not inherit the trait.
B.Both children would inherit the trait.
C. Each child has a 50% chance of inheriting the trait.
D. One child would inherit the trait and one child would not.
Answers
Answer:
C
Explanation:
autsomsal means that it is not x-linked/ realted to gametes. Dominate means that it needs only one X to get the trait
Using the punnet square
X x
x Xx xx
x Xx xx
there is 2 X which means there is a 50% change that their child will get the trait
In the punnett square analysis, each child has a 50% chance of inheriting the trait.
The mother Xx has the trait and the father xx doesn't.
Using the punnet square
Xx xx
Xx Xx xx xx
There are just two traits which are Xx and xx which are in equal frequency
and proportion.
This therefore means that the children have a 50% chance of getting the trait.
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I have a science question....30 points! Look at the minerals shown below.
Both diamond and coal are formed by changes in pressure and temperature below the Earth's surface. Which of these is a step in the formation of the minerals?
A. atoms break up in extreme heat
B. atoms are rearranged in materials
C. atoms combine in water to form solids
D. atoms of magma cool after a volcanic eruption
Thank you.
Answers
Answer:
B. atoms are rearranged in materials
Explanation:
What process would you consider essential for maintaining life ?
Answers
➜ The important processes essential for maintaining life are:
Nutrition.Respiration.Transportation.Breathing.Movement.Excretion.Control and coordination.What is electricity?
A
the energy produced when an object vibrates
B
the energy stored in the bonds of chanical compounds
с
the energy produced by electrons
the energy of motion
Answers
Please help me with this !
Answers
Answer:
1. E
2. C
3. A
4. D
5. F
Laboratory Thermometer hermometer, is used for measuring temperatures other than the human body temperature. Could use as tool for experimentation or any other scientific field activities.
Clinical Thermometer is meant for clinical purposes. It is developed for measuring the human body temperature.
Acid is a kind of chemical compound that when dissolved in water gives a solution with H+ ion activity more than purified water. An acid is a proton donor.
Base is an aqueous substance that donates electrons, accept protons or release hydroxide (OH-) ions. A base is a proton acceptor.
Which biome is characterized by plants that drop their leaves in the winter?
Answers
Answer:
Temperate Deciduous Forest Biome
Temperate Deciduous Forest Biome
This biome is named for the dominant trees that drop their leaves during the winter months. These forests may have an overstory of 20–30 m tall trees, an understory of 5–10 m trees and shrubs, a shrub layer around 1–2 m in height, and a ground layer of herbaceous plants.
Explanation:
reproductive process of amoeba
Answers
Reproductive process of amoeba
The International Astronomical Union (IAU) defines a constellation by its:
boundary
star pattern
brightest star
Greek name
Answers
Answer:
Each constellation is a region of the sky, bordered by arcs of right ascension and declination. ... Together they cover the entire celestial sphere, with their boundaries adopted officially by the International Astronomical Union in 1928 and published in 1930.
So I would say its A : Boundary
Explanation:
- Eijiro <3
Love the pfp by the way! :D
The International Astronomical Union (IAU) defines a constellation by its boundary. The correct option is A.
What is International Astronomical Union?In 1919, the International Astronomical Union (IAU) was established. Its goal is to encourage and protect astronomy in all of its forms, including research, interaction, education, and development, through international cooperation.
The International Astronomical Union (IAU) is the oldest intergovernmental organization of professional astronomers, having been in existence for over a century. It has over 13000 members and 82 national members, among them India.
The IAU designates a constellation by its boundary rather than its pattern, and the same constellation can have multiple representations. Asterisms should be distinguished from constellations.
Thus, the correct option is A.
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