RNAi is a gene silencing technique that is based on the fact that RNA molecules can fold into short, double-stranded regions where the base sequence is complementary.
What is the RNAi mechanism?A conserved biological response to double-stranded RNA, known as RNA interference (RNAi) or post-transcriptional gene silencing (PTGS), promotes resistance to both endogenous parasites and exogenous harmful nucleic acids and controls the expression of protein-coding genes. Small double-stranded RNA (dsRNA) molecules are used as triggers by most eukaryotic cells' RNA interference (RNAi) regulatory mechanisms to direct homology-dependent control of gene activity.
In order to protect plants from molecular parasites like viruses, RNA silencing has evolved. In controlling gene expression for growth and development, it is also helpful. These pathways interact with one another and generate short RNAs to function.
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Depending on environmental conditions, specific genes can be either
a. active or inactive
b. identical or fraternal
c. structured or unstructured
d. monozygotic or dizygotic
Option a is Correct. Specific genes can be active or dormant depending on their surroundings.
The same genes are present in both twins, but not in the same amount of copies. This could explain some minor discrepancies between the twins or why one of them is more susceptible to illness. Similar prenatal conditions (placenta) are shared by identical twins as well, though one may get a little bit more sustenance and care.
A gene is expressed if it is active, and it is not expressed if it is inactive. Inactive genes may become active as a result of environmental influences. Each cell's nucleus contains chromosomes, which are structures that resemble threads and contain the DNA molecule. Each chromosome is constructed of DNA that has been tightly wound around proteins several times to support its structure.
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match the term with the correct definition water moves from the surface through the soil underground
Percolation is the process by which water moves from the surface through the soil underground.
This occurs as water moves from regions of higher pressure to regions with lower pressure, such as from the surface downward. The water can be held in the soil and travel in different directions, depending on the soil structure and the rate of movement.
Percolation is the process by which water moves from the surface to deeper layers of soil, through a process of absorption and drainage. This process is driven by the forces of gravity and capillary action, which cause water molecules to move from higher to lower pressure areas. As the water moves through the soil, it is filtered and purified, and can be stored in the soil and used by plants, animals, and other organisms. Additionally, percolation can help to recharge groundwater aquifers, providing a vital source of fresh water for human consumption.
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Can a psychiatrist diagnose physical illness?
No, a psychiatrist is a medically trained professional who can help treat, diagnose and prevent mental illnesses and not physical illnesses.
Psychiatry can be defined as the branch of medicine which focuses majorly on the prevention, diagnosis and the treatment of mental illnesses or disorders like bipolar disorders, schizophrenia, anxiety disorders, stress disorders etc. A medical doctor who practices psychiatry is called a psychiatrist.
A psychiatrist does not treat or diagnose physical illnesses. A psychiatrist can perform mental as well as physical examinations in order to identify and also treat serious mental disorders through non-medicinal therapy, counselling and also prescribe medications as per the requirement of the patient.
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The very high levels of Iridium at the KT boundary was confirmed in different parts of the world
and supported an already existing hypothesis, a supernova had caused the extinction. How was
this hypothesis tested?
Scientists looked for planetary evidence of a supernova
Scientists ruled out all the other hypothesis and only the supernova was left
Scientists tested the amount of plutonium in the KT boundary
Scientists studied craters from ancient asteroids
The very high levels of Iridium at the KT boundary was confirmed in different parts of the world and supported an already existing hypothesis, a supernova had caused the extinction. The hypothesis was tested as Scientists tested the amount of plutonium in the KT boundary.
What is the KT boundary.?KT boundary is described as the thin layer of clay that separates rock layers from the end of the Cretaceous period to those from the beginning of the tertiary (Paleogene) period.
Lack of an isotope of plutonium in the K-T boundary layer prompted researchers to abandon the hypothesis that a supernova caused the high levels of iridium in the K-T layer.
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How could we see energy being transferred to a material when forces are acting on it? And how much would we need to zoom in? Someone please help me Im begging
Answer:
Main content
What are energy and work?
Here we learn what work and energy mean in physics and how they are related.
What does energy and work mean?
Energy is a word which tends to be used a lot in everyday life. Though it is often used quite loosely, it does have a very specific physical meaning.
Energy is a measurement of the ability of something to do work. It is not a material substance. Energy can be stored and measured in many forms.
Although we often hear people talking about energy consumption, energy is never really destroyed. It is just transferred from one form to another, doing work in the process. Some forms of energy are less useful to us than others—for example, low level heat energy. It is better to talk about the consumption or extraction of energy resources, for example coal, oil, or wind, than consumption of energy itself.
A speeding bullet has a measurable amount of energy associated with it; this is known as kinetic energy. The bullet gained this energy because work was done on it by a charge of gunpowder which lost some chemical potential energy in the process.
A hot cup of coffee has a measurable amount of thermal energy which it acquired via work done by a microwave oven, which in turn took electrical energy from the electrical grid.
In practice, whenever work is done to move energy from one form to another, there is always some loss to other forms of energy such as heat and sound. For example, a traditional light bulb is only about 3% efficient at converting electrical energy to visible light, while a human being is about 25% efficient at converting chemical energy from food into work.
How do we measure energy and work?
The standard unit used to measure energy and work done in physics is the joule, which has the symbol J. In mechanics, 1 joule is the energy transferred when a force of 1 Newton is applied to an object and moves it through a distance of 1 meter.
Another unit of energy you may have come across is the Calorie. The amount of energy in an item of food is often written in Calories on the back of the packet. A typical 60 gram chocolate bar for example contains about 280 Calories of energy. One Calorie is the amount of energy required to raise 1 kg of water by 1∘∘degrees Celsius.
how can seismic study be used to determine density variation
The denser a material is, the faster a seismic wave travels
What are seismic waves ?The propagation of seismic waves through earth materials is measured using seismic techniques. When conducting seismic surveys, a sound source at the surface, such as an explosion or a mechanical impact, causes seismic waves to propagate outward.
Denser materials allow seismic waves to propagate more quickly, hence depth generally increases the speed of seismic waves. Seismic waves are slowed in abnormally hot regions. A liquid conducts seismic waves more slowly than a solid does.
Acoustic waves are used in seismic surveys to generate images of the ground by analysing their vibrations. While certain seismic waves can travel deep under the earth through solid rock and fluids, others can simply move along the surface of the planet like water ripples.
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Where does phosphorus come from and how does it move through the cycle?
Answer:
Phosphorus moves in a cycle through rocks, water, soil and sediments and organisms.
Explanation:
Over time, rain and weathering cause rocks to release phosphate ions and other minerals. This inorganic phosphate is then distributed in soils and water. Plants take up inorganic phosphate from the soil.
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Looking at the weather map, predict what weather would be happening in Nashville over the next couple days
Question 4 options:
Warm air moving from the south will cause several days of warm weather
Clear cold weather for several days
Rainy weather first, followed by clear skies
Rain and snow for several days
Answer:Clear cold weather for several days
Explanation:onh
If snapdragons are heterozygous for height as well as for flower color, a mating between them will result in what ratio? A) 9:4:3. B) 1:2:1. C) 27:9:9:9:3:3
A snapdragon mating is 6:3:3:2:1:1 if it is heterozygous for both height and blossom colour.
Which of the following is an illustration of partial dominance?Response and Justification: (B) Wavy hair is the right response. When an organism expresses a phenotype that is in-between the two distinct alleles of a gene, it is said to exhibit incomplete dominance.
What does partial dominance mean?Gene interaction known as incomplete dominance occurs when only one of two alleles of a gene at a locus is fully expressed, frequently leading to an intermediate or distinct phenotype. Partial domination is another name for it.
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What are the different steps in the data analytics life cycle?
The Data Analytics lifecycle primarily consists of 6 phases:
Phase 1: Data Discovery and Formation.
Phase 2: Data Preparation and Processing.
Phase 3: Design a Model.
Phase 4: Model Building.
Phase 5: Result Communication and Publication.
Phase 6: Measuring of Effectiveness.
WHAT IS DATA ANALYTICSData Analytics (DA) is the process of inspecting a series of data that is useful for drawing conclusions from existing information and improving systems in software. Data analytics technology and techniques are used in the commercial industry which makes it easier for companies to get better and more accurate end results.
In terms, data analytics is defined as a series of applications ranging from Basic Business Intelligence (BI), Reporting and Online Analytical Processing (OLAP) and some of the more sophisticated analytical features.
From this understanding, what is data analytics can be interpreted as a simple process of business analytics, another general term that approaches data analytics with an orientation towards business users, where data analytics has a broader focus.
Initiating data analytics can help companies increase revenue, improve operational efficiency, optimize marketing programs and customer service efforts, respond quickly to market trends and compete with rivals by improving business performance.
Depending on the application, the analyzed data contains either historical records or new information that has been processed according to the user's real-time requirements. In addition, data analytics can be a mix of internal and external system data sources.
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Determine the outcome of this cross in terms of sex, eye color, and wing size of the offspring. Select all that apply.
Males with normal eyes and small wings and females with white eyes and normal wings are the results of this cross in terms of gender, eye color, and wing size.
Which chromosomes are involved in determining sex?When you are born, your gender is determined by your X and Y chromosomes. In females, there are two X chromosomes. The term "sex chromosomes" is also used. Every male has one X and one Y chromosome.
Who determines a child's gender?Almost everyone has roughly equal odds of giving birth to a boy and a girl. What we can say is that the father's sperm determines whether a kid will be born as a boy or a girl.
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Question:
Determine the outcome of this cross in terms of sex, eye color, and wing size of the offspring.
Select all that apply.
A) males with normal eyes and normal wings
B) males with white eyes and normal wings
C)males with normal eyes and miniature wings
D) males with white eyes and miniature wings
E) females with normal eyes and normal wings
F) females with white eyes and normal wings
G) females with normal eyes and miniature wings
H) females with white eyes and miniature wings
Hello can someone please help me with this
15a. Shivering can increase your body temperature if you are in a cold environment. Is shivering part of positive feedback ___ or negative feedback ___?
. Explain your reasoning.
Shivering is an example of negative feedback since it is a reaction that attempts to raise body temperature in an effort to undo the initial change and return to the set point.
Why does shivering make you feel hotter?Shivering is the term for when your muscles start to rapidly contract and loosen over and over again in a short amount of time. You stay a little bit warmer because to the heat produced by the energy required to cause your muscles to tremble.
What happens when you shiver?When muscles just below the skin's surface contract voluntarily to "shiver," they generate heat that helps the body temperature return to a normal range. This is caused by hormones released by the hypothalamus.
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For an organim’ cientific name, the firt part i the ________ and the econd i the ________
The principal expression of a logical name of an organic entity demonstrates its variety and the subsequent word shows the species. By this technique for binomial classification, the logical name of an organic entity has been made normal from one side of the planet to the other.
The initial segment of the name - the nonexclusive name - recognizes the variety to which the species has a place, though the subsequent part - the particular name or explicit designation - recognizes the species inside the family. For instance, present-day people have a place with the variety Homo and inside this family to the species Homo sapiens.
Logical names are made out of two Latin or Greek terms: the first compares to the variety and the subsequent one, to the species having a place with this family.
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Which of the following best describes smaller DNA fragments that undergo DNA electrophoresis?
They travel faster towards the negative end of the gel.
They travel faster and further than larger fragments.
They travel slower than larger fragments.
They travel slower towards the positive end of the gel.
They travel faster towards the negative end of the gel is the best describes smaller DNA fragments that undergo DNA electrophoresis.
What are the characteristics of DNA movement in electrophoresis?
Under the direction of an electric field, electrophoresis divides biomolecules such as proteins, nucleic acids, amino acids, etc. based on their size, shape, chemical charge, etc. A positively charged molecule (Anion) will travel toward the negatively charged electrode (Cation) when the electric field is present. Moving in the direction of the positively charged electrode, or anion, is the negatively charged molecule (cation). "Cataphoresis" is the movement of a positively charged ion toward a negatively charged electrode. Anaphoresis is the term for the migration of a negatively charged ion toward a positively charged electrode.
DNA being negatively charged moves towards positive end of the gel and also smaller fragments are light weighted so move faster that larger fragments that are heavy.
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Plssss answer
Point C
Point B
Point d
Point a
Answer: I Would say Point B
Explanation: I think im smart
PLEASE HELP ME ANSWER???
in what way does an enzyme affect the reaction it catalyzes
Answer: An enzyme increases the rate of reaction it catalyzes. It does this by combining with the substrate to form a highly reactive enzyme-substrate complex.
Explanation:
which of these is an example of genetic modification?
The following example of genetic modification is sweet corn.
What is genetic engineering?Genetic engineering is an attempt to modify the genetic molecules of an organism so that new properties are obtained.
The emergence of process of genetic engineering originated from an attempt to reveal the existence of genetic material that is passed from one generation to the next.
The goal of genetic engineering in plants is to produce "perfect" food products that are resistant to pests and herbicides, including those caused by viruses. Producing food products that have a fairly high and complete nutritional content.
Your question is incomplete. maybe the point of your question is :
Which of these is an example of genetic modification?
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Why is it crucial for mitosis to be error free?
It is crucial for mitosis to be error free so that the normal and healthy cells do not get transformed to form cancer cells.
Mitosis is basically a cell division in which one cell, the mother cell, divides in order to give rise to two new cells which we call as the daughters cells that are identical genetically to itself. In the cell cycle, mitosis is the process of division in which the DNA splits and forms two equal sets of chromosomes. It is important for both repair as well growth in the body.
It is very important for mitosis to be error free as any fault in the process might result in the transformation of healthy cells into cancer cells which do not have a regulated growth. These transformed cells will keep growing in numbers and give rise to tumors in the body of an individual which might lead to diseases like cancer.
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Which of the following is NOT a characteristic of all living things?
Question 4 options:
metabolism
heredity
sexual reproduction
homeostasis
Answer:
metabolism
Explanation:ong
There are many fields of biology, and in some branches, biologists are concerned with tiny , while others study vast. Biologists who study how the activities of all living organisms affect both the atmosphere and climate are working in the field of. Researchers who seek to replace damaged genes or to genetically engineer bacteria are studying. Some biologists work to combine the latest genetic information with computer technology to organize all living things into a single universal. Scientists concerned with hiv, bird flu, drug-resistant bacteria, and other pathogens are researching the , while others who look at the entire sets of dna code contained in a wide range of organisms are studying.
There are various branches of biology, and although some study entire (2) planets, others are more interested in teeny (1) molecules. In the discipline of (3) global ecology, biologists investigate how the actions of all living things impact the atmosphere and climate.
What area of biology deals with the examination of the composition and organisation of living things?There are different branches of biology, and some biologists focus on the minuscule while others investigate the enormous. In the field of, biologists research how all living things' actions impact the climate and the atmosphere. Researchers are looking on ways to genetically modify microbes or repair damaged DNA.
What area of biology investigates the beginnings and cyclical evolution of living things?There are different branches of biology, and some biologists focus on the minuscule while others investigate the enormous. In the field of, biologists research how all living things' actions impact the climate and the atmosphere.
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Please help me quickly ill give brainlest
Answer:
kinda blurry so I hope I answered everything correctly!
A. The Linear equation would be x + y = 50
B. Ted spends 35 minutes practicing the breaststroke every day.
Ted spends 50 minutes every day swimming so x +y = 50 (let us say x is butterfly stroke and y is breaststroke). Since he practices the breaststroke for 20 more minutes than the butterfly stroke we have:
2x + 20 = 50
2x = 50 - 20
2x = 30
x =30 / 2
x = 15
y = 15 + 20 =35 minutes
C. No, it is not possible for Ted to have spent 45 minutes practicing the butterfly stroke every day because of the time constraint.
***Human Anatomy and Physiology***
Define the term “peristalsis” and explain why it is important.
Answer:
Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract. It starts in the esophagus where strong wave-like motions of the smooth muscle move balls of swallowed food to the stomach.
The peristaltic movement also called as the Peristalsis refers to the contraction and relaxation of the food in the oesophagus and the food pipe and the food is forced down the track to the stomach. This movement is involuntary and is necessary for the movement of food down the stomach and bowels down the anus
Is psychology a science article?
YES, psychology is a science because it is based on scientific methods.
Psychologists use the scientific method in order to obtain results and conclusions. Using the scientific approach in psychology, first of all, the question or hypothesis is stated, for which then a theory is made, and after that field experiment or rigorous laboratory is designed in order to check the stated hypothesis.
Psychology employs the understanding gained through research to produce evidence-based approaches that solve problems and improve everyday lives. Since psychology is based on scientific evidence, it is said to be correct that psychology is a science.
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Greg: Silk Flexibility
Record observations: What traits and proteins does Greg have for the silk flexibility feature? Make a prediction: Do you think adding protein 1 will change Greg’s trait? Why or why not? Test your prediction: Did you observe a change? If so, record the new trait you observed.
Link: Traits and Reproduction Sim
:) HELP ASAP
as there are fewer number of connections in that organism that was silk that is having the property of flexibility.
define traits ?
Personality traits are the building elements of personality. So, what exactly is a trait? In a nutshell, it's a generally steady style of thinking and behaving that can be used to characterise someone and compare and contrast them with others.
Traits can be expressed in broad words, such as how well inclined a person is toward other people in general, or in more particular terms, such as how much that person trusts other people. These more distinct components of personality are referred to as "facets" at times. Personality qualities are typically thought to be separate from mental talents (including general intelligence), which are evaluated based on how effectively one reacts to situations or queries.
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Answer:
he has low flexibility.
Explanation:
Traits can be expressed in broad words, such as how well inclined a person is toward other people in general, or in more particular terms, such as how much that person trusts other people. These more distinct components of personality are referred to as "facets" at times. Personality qualities are typically thought to be separate from mental talents (including general intelligence), which are evaluated based on how effectively one reacts to situations or queries.
a)
Andrea is investigating the effects of light intensity and carbon dioxide concentration on the rate of photosynthesis. She measured the rate of photosynthesis at different light intensities for two identical plants. The plants were placed in closed containers. One container had an initial carbon dioxide concentration of 0.40%. Th e other container had an initial carbon dioxide concentration of 0.03%. She plotted her results as shown below.
Look at the graph. Does an increase in carbon dioxide concentration affect the rate of photosynthesis?
b)
Explain your answer.
Based on the graph, an increase in carbon dioxide concentration increases the rate of photosynthesis because the rate of photosynthesis for the different light intensities for the container that had an initial carbon dioxide concentration of 0.40% was greater than that of the container that had an initial carbon dioxide concentration of 0.03%.
What is photosynthesis?The process called photosynthesis is the process that plants and other living things employ to change light energy into chemical energy that can then be released through cellular respiration to power the organism's activities.
The rate of photosynthesis is affected by:
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One function of the male reproductive system in mammals is to
The main function of the male reproductive system is to produce and release sperm for sexual reproduction.
What is the function of the male reproductive system in animals?The function of the male reproductive system is to make androgens such as testosterone that continue male reproductive function and promote spermatogenesis and convey into the female reproductive system for fertilization.
The human reproductive system functions to manufacture human offspring, with the male providing sperm and the female on condition that the ovum. The male reproductive system has two main functions: (1) to provide sperm, the male gamete, and (2) to release the male sex hormone, testosterone, into the body.
So we can conclude that The male reproductive system is made up of internal and outer organs,
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What is a bearded dragon's normal body temperature?
Answer:
The answer to your question is ⇔ 35 degrees centigrade.
Which is equal to 95 degrees Fahrenheit.
Explanation:
I hope this helps and have a wonderful day!
Answer: it should have lighting and uvb light, littile heating pads in the winter but i recomend the hot spot to be 100 to 110 where the area youre dragon should sit, whats the age?
Explanation:
im a exspert on animals and they live in the desert.
Decribe three level of biodiverity. Which level i mot commonly meant by biodiverity?
The three components of biodiversity are genetic variety, species diversity, and ecosystem diversity. The variety of species in an area is referred to as species diversity.
The diversity of habitats, communities, and all biological processes among ecosystems is implied by the term "ecosystem diversity."
The variation of inheritable traits or genes present in a group of the same species is what genetic diversity is all about. A measure of diversity within an ecological community that takes into account both species richness and the evenness of species abundances is referred to as species diversity. Diversity of an ecosystem includes both habitat and community diversity.
Science has identified about 1.7 million species that exist on Earth. It is estimated that there are many more species, particularly those of tiny organisms. These projections are still being updated by scientists. 2. Describe three biodiversity tiers.
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Please help, will give brainiest
QUESTION 1.
Element X on Planet Qatar has three known isotopes: X-121 with a relative abundance of 43.2%, X-123 with a relative abundance of 53.1%, and X-129 with a relative abundance of 3.70%. What is the average atomic mass in amu of Element X given this information?
QUESTION 2.
How did Rutherford's experiment change the way scientists had previously viewed atomic structure? How did this pave the way for subsequent changes up to and including the currently accepted quantum mechanical atomic model?
QUESTION 3.
How is percent abundance related to average atomic mass?
a) The percentage abundance determines how much we have the isotope.
b) The relative atomic mass is 122.5 amu
c) The Rutherford's model explained the atom.
What is the relative abundance?It is clear that the isotope that we know are the atoms of an element that has the same atomic number but they do not have the same mass number. The implication of this is that the elements that are in question have many atoms of the element but they are not exactly alike as we would have expected.
Given that we have the element X we can be able to write that;
Relative atomic mass = Weighted average of all the isotopes
As such we have;
(121 * 0.432) + (123 * 0.531) + (129 * 0.0370)
52.27 + 65.31 + 4.773
=122.35 amu
The Rutherford's model gives a good idea about the way that the atom of the element may look like and this is the entire idea of the model to help us to make sense of the atom.
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