which of the following mutations will most likely not result in a change in phenotype of an individual?
a. a point mutation which does not change the amino acid
b. an inversion mutation
c. a nonsense mutation which stops the production of a protein prematurely
d. a missense mutation which results in valine being produced instead of glutamic acid
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Answers

Answer 1
The answer is A. point mutation which does not change the amino acid. A point mutation is a mutation of gene in which a single nucleotide is changed from the sequence. In this case, the  amino acid was replaced by the same amino acid in which there will be no effect on the product of the sequence. This will not alter the replicated DNA, Product that will be produced will be essentially the same.
Answer 2

Final answer:

A silent point mutation, which does not alter the resulting amino acid, is most likely not to cause a change in phenotype, as the protein produced remains the same. Other mutations such as nonsense, missense, and inversion generally lead to phenotypic changes.

Explanation:

The mutation most likely not to result in a change in the phenotype of an individual is a point mutation which does not change the amino acid, known as a silent mutation. Silent mutations occur when the change in the nucleotide sequence does not result in a different amino acid because of the redundancy in the genetic code. Consequently, the protein produced is unchanged, leading to no alteration in phenotype. In contrast, both nonsense mutations and missense mutations, as well as inversion mutations, typically result in changes to the phenotype because they cause the protein to be made incorrectly or not at all, or change the sequence in which genes are arranged, potentially disrupting gene function.


Related Questions

Scientists use this term to describe the specialization of the two hemispheres of the cerebral cortex:

Answers

The correct answer is "lateralization." This is from the concept of neural processes such as cognition, motor function, sensory function, etc. are more dominant at one side of the brain than the other. The corpus callosum is the structure that connects the left and right hemispheres of the brain.

What parts of a nucleotide make up the backbone of a nucleic acid? pairs of nitrogen bases pairs of sugars sugar and nitrogen base sugar and phosphate

Answers

A DNA molecule consists of two strands of nucleotides twisted together to form a double helix. The sugar-phosphate backbone is found on the outside of this helix and the bases are found braching towards the middle. Hydrogen bonds join the thenitrogenous bases and hold the two strands together.

Therefore your answer is sugar and phosphate.

answer is sugar and phosphate.

​untreated gastroesophageal reflux increases the risk for the more serious condition known as ____.

Answers

It is known as Barrets esophagus 

A construction company wants to trap pollutants in runoff at its sites. What should the company do?
Practice conservation tillage at the sites.
Release beneficial insects, such as spiders and ladybugs, at the sites.
Plant grass and lay straw at the sites.
Plant trees at the sites.

Answers

Answer: Plant grass and lay straw at the sites.

Explanation:

Runoff is a flow over of water or any other liquid over a surface causing erosion. The flow of water is of high speed and rapid. It is not absorbed by the soil.

Plant grass and lay straw at the sites is the correct option this is because of the fact that the grass and lay straw will absorb the runoff water and prevent the erosion.

Answer: the third option

Explanation:

What three phases of the cell cycle are considered interphase

Answers

G1,G2 and synthesis

Answer:

omg the answer is literally in the question (interphase)

Explanation:

B cells interacting with helper t cells are stimulated to differentiate when _____.

Answers

There are choices for this question namely:

A) B cells produce IgE antibodies
B) B cells release cytokines
C) cytotoxic T cells present the class II MHC molecule-antigen complex on their surface
D) helper T cells release cytokines

The correct answer is "helper T cells release cytokines". Cytokines are released by helper T cells when B cells attach to them via receptors. These T cells "help" these B cells to differentiate by secreting certain cytokines. When B cells differentiate, they are converted to plasma cells and able to secrete antibodies to the antigen presented to the T cells. 

An experiment in which neither the experimental unit nor the researcher in contact with the experimental unit knows which treatment the experimental unit is receiving is called a​ _______.

Answers

Double blinded Randomized controlled trial

Final answer:

A double-blind study is a research design where neither the participants nor the researchers know who is in the experimental or control groups, preventing bias and increasing the reliability of the results.

Explanation:

An experiment in which neither the experimental unit nor the researcher in contact with the experimental unit knows which treatment the experimental unit is receiving is called a double-blind study. In such a study, both the subjects (or participants) and the researchers are unaware of who has been assigned to the experimental group or the control group. This design is critical in scientific research as it helps prevent bias in the outcomes, ensuring that the results are more reliable and valid.

Why do you feel your heartbeat more strongly on the left side?

Answers

Hope this helps! This is what I found when googling it!
Final answer:

The left side of the heart pumps oxygenated blood to the body, causing a stronger heartbeat sensation on the left side. The left ventricle, responsible for pumping blood out to the body, has thicker and stronger muscles compared to the right ventricle.

Explanation:

The left side of the heart is responsible for pumping oxygenated blood to the rest of the body in the systemic circuit, while the right side pumps deoxygenated blood to the lungs in the pulmonary circuit. The left side of the heart is larger than the right side, which is why you may feel your heartbeat more strongly on the left side. This is because the left ventricle, which pumps blood out to the body, has thicker and stronger muscles compared to the right ventricle.

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When a driver mixes alcohol or other drugs together, it creates a?

Answers

It creates a synergistic effect.

Answer:

drug synergistic effect

Explanation:

A drug synergistic effect happens, when interactions between two or more drugs cause the total effect to be greater as a whole. Drug interactions occur when two or more drugs (note that medical drugs also are taken into account) as their chemicals react with each other. Drug condition interactions may occur when an existing medical condition makes some drugs potentially harmful. Therefore advise is always to remember not driving under any of these conditions or experiencing syptoms associated to taking medication.

Usually the synergistic effect is harmful to the body and can lead to severe risks to health or dead. (The percentage of death rate by irresponsible driving often happens while the driver is under the effect )

Vitamin _____ promotes growth and mineralization of bones and increases calcium absorption

Answers

Vitamin D promotes growth and mineralization of bones and increases calcium absorption.

Vitamin D promotes the growth and mineralization of bones and increases calcium absorption.

What are vitamins?

Vitamins are the organic molecules that are required by organisms for the normal functioning of the cells. Vitamins are classified as fat-soluble vitamins and water-soluble vitamins.

Different types of vitamins are:

Vitamin AVitamin BVitamin CVitamin D.

Vitamin D is important for the growth and mineralization of bones. It is present in milk, egg yolk, and cereals. It maintains calcium levels in the body. It is also known as calcitriol. Direct exposure to sunlight also increases vitamin D. Deficiency of vitamin D leads to weak bones. Vitamin D is also classified as Vitamin D2 and vitamin D3.

Therefore, Vitamin D promotes the growth and mineralization of bones and increases calcium absorption.

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Due to climate and soil factors, in what biome would you expect to find the fewest burrowing animals? A) Sahara Desert. B) Alaskan tundra C) benthic ocean zone D) temperate grassland prarie

Answers

im quite sure that the answer is C). because i dont know of too many creatures that burrow under water besides stingrays.

Answer:

Option B, Alaskan tundra

Explanation:

The temperature in Alaskan tundra is extremely low and hence its soil is mostly in frozen condition. Also the Alaskan soil lack nutrients and vegetation due to frost in soil up to a depth of 100 centimeters.

Hence, the burrowing animals have the least chances to survive and exists in this biome.

Though benthic ocean zone is predominantly water biome but it too has sea floor burrowing sea urchin species.

hence option B is correct.

N a lab you are conducting tests with various chemicals and neurotransmitter receptors. you notice that exposed frog muscle cells depolarize when you add the chemical nicotine to the acetylcholine (ach) receptors. what does this tell us about the relationship between neurotransmitters and their receptors? in a lab you are conducting tests with various chemicals and neurotransmitter receptors. you notice that exposed frog muscle cells depolarize when you add the chemical nicotine to the acetylcholine (ach) receptors. what does this tell us about the relationship between neurotransmitters and their receptors? the effect of a neurotransmitter is based on the properties of the neurotransmitter more than the receptor. neurotransmitter receptors only bind specifically with their neurotransmitter. the effect of a neurotransmitter is based on the properties of the receptor more than the neurotransmitter. the response generated by a receptor is very broad in nature.

Answers

The effect of a neurotransmitter is based on the properties of the receptor more than the neurotransmitter.

Based on the information given, the effect of a neurotransmitter is based on the properties of the receptor to which they bind more than the neurotransmitter.

Also, it should be noted that some neurotransmitters lead to stimulation when they bind to receptors while the others bring about inhibition.

In conclusion, it should be noted that the effect of a neurotransmitter on a receptor actually depends on the properties that the receptor has.

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Which of the following does not have an impact on Earth's climate?
A. The movement of the ocean.
B. Greenhouse gases.
C. Burning fossil fuels
S. None of the above.

Answers

Obveasly S,cause'all of the three statements above have an impact on Earth's climate.

The following that does not have an impact on Earth's climate is the movement of the ocean that is present in Option A, as the movement of the ocean does not change the composition of the earth's atmosphere.

What are the causes of global climate change?

There are many causes of the earth's climate change, such as the release of different chemicals into the water bodies and harmful gases in the environment; all these lead to an increase in temperature, pollute the land, which leads to low agriculture, etc. The burning of fossil fuels releases gases that trap radiation and cause global warming, which is harmful for animals and plants.

Hence, the following that does not have an impact on Earth's climate is the movement of the ocean that is present in Option A, as the movement of the ocean does not change the composition of the earth's atmosphere.

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A client tells the nurse, i need help planning an exercise regimen to help manage my weight. which stage of health behavior change does this reflect?

Answers

The client is in the stage of preparation for action. In this stage the client accept that there is a need to change, acknowledgement and accept that there is a problem. This occurs when the client ask or seek for help in order to address problems. Preparation for action is the third stage of the five stages of behavioral change; the first is pre contemplation second, contemplation, third, preparing for action fourth, action, fifth, maintenance.

The earliest elephants evolved during the: Paleocene Eocene Oligocene Holocene

Answers

The earliest elephants evolved during the Eocene era.

The correct answer is option (B) eocene era.

The eocene era is one of the divisions of the geological time scale characterized by the little or no ice with a small difference in temperature from the equator to the poles. It began 56 million years ago and the amount of oxygen was high compared to the previous era. Green house gases like methane and carbon dioxide were also present in the atmosphere. The oldest fossil evidences of the mammals appear during eocene period. It was characterized by the presence of the early primates, whales, horses and early elephants.

Elephants are the members of the family Proboscidae and the first proboscidaen is said to evolve during the late eocene era, about 35 million years ago. It was called the Paleomastodon with the size of a cow and had tusks and a trunk.

How is sympatric speciation similar to allopatric speciation?



A. They both are mechanisms by which new species arise.


B.They both result in a subspecies evolving into a subpopulation.


C.They both involve joining two gene pools that were formerly separated.


D.They both involve speciation due to physical barriers.

I Think The Answer is A. but i'm not sure tell me if i am correct or not! They both are mechanisms by which new species arise.





Answers

They both are mechanisms by which new species arise.

Sympatric speciation and allopatric speciation are both mechanisms of species creation. Allopatric speciation occurs when a population is physically divided and evolves distinctly, while sympatric speciation happens within the same location, often due to niche differentiation or genetic changes causing reproductive isolation.

Indeed, you are correct. Both sympatric speciation and allopatric speciation are mechanisms by which new species arise. Allopatric speciation occurs when a population is separated by a physical barrier (like a mountain or a river), which prevents gene flow between different groups in the population. Over time, these isolated groups may diverge and form new species.

On the other hand, sympatric speciation, which is less common, happens without a physical barrier. Instead, it can occur when a subpopulation evolves to exploit a different niche or when genetic changes result in reproductive isolation within the same location.

Thus, in essence, both processes result in the formation of new species, which is why your answer is correct in stating that they are mechanisms by which new species arise.

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In humans, coral is sometimes used to replace sections of

Answers

In humans, coral is sometimes used to replace sections of BONE. Human bone and the hard, rocky sections of the coral reef are both made of similar calcium compounds. They are the larges living structures on the planet. Corals take in dissolved CO2 along with other minerals from the ocean to secrete a hard rocky skeleton.

Coral reefs are also studied for their antibiotic and antiviral properties.

What body movement would indicate that the sender wants the conversation to end?

Answers

There are many body movement signs that the sender wants the conversation to end. One of the sign is tapping a finger or pencil on something. This indicates that the sender is in a hurry and wants the conversation to end. Secondly is the direction the feet are facing. If the sender's feet face away from you or towards the door, then the sender is bored and wants the conversation to end.

Seismic gaps are places where scientists think that ________.

Answers

The answer is Faults are storing elastic strain. To simplify, seismic gaps are places where scientist think that faults are keeping elastic strain. In addition, scientists think that stress on a fault constructs up to a critical point and is then unconstrained as an earthquake. The seismic gaps are areas in which no earthquakes have occurred over a long period of time and therefore are probable to be under a high volume of stress. 

I am found inside of the nucleus. i help produce ribosomes. i am the

Answers

I am the jelly-like fluid inside the cell. I provide an area of movement for all the dissolved molecules that keep the cell working . Nucleolus. I am found inside of the nucleus. I help produce ribosomes . Cell Membrane. I am a thin protective layer around the cell, but I am not solid piece. I have tiny openings that allow materials 



can i get brainlest

Final answer:

The nucleolus is the structure inside the nucleus responsible for producing ribosomes by assembling ribosomal RNA with proteins. Subunits of ribosomes are transported to the cytoplasm through nuclear pores for protein synthesis.

Explanation:

The structure found inside of the nucleus that helps produce ribosomes is called the nucleolus. The nucleolus aggregates ribosomal RNA (rRNA) with associated proteins to assemble ribosomal subunits. These subunits are essential for protein synthesis and are transported out of the nucleus through the nuclear pores to the cytoplasm.

Chromosomes within the nucleus contain sections of DNA that encode ribosomal RNA. The nucleolus, a darkly staining area in the nucleus, centralizes the production of rRNA necessary for constructing ribosomes. Finally, the ribosomes, which are responsible for making proteins, move to the cytoplasm where they decode genetic messages into amino acids and build proteins.

What symbiotic relationship is sea slug and algae?

Answers

The symbiotic relationship between sea slug and algae is mutualism because both have benefited with each other. This is an astonishing case of symbiosis since it is intracellular. The algae’s cell composition is ruin when it will integrate into the sea slug’s skin, but still the algae stay usable for several months. The algae acquired protection, but the sea slugs benefited more with this relationship.

The sea slug Elysia chlorotica forms a mutualistic relationship with algae where it incorporates algae's chloroplasts to photosynthesize, benefiting both organisms.

The symbiotic relationship between the sea slug, specifically Elysia chlorotica, and algae is an intriguing example of mutualism. In this relationship, the sea slug assimilates chloroplasts from the algae into its own cells through a process known as kleptoplasty. These chloroplasts continue to function within the sea slug's cells, allowing the slug to photosynthesize like a plant.

This is beneficial for the sea slug as it can obtain energy directly from sunlight, while it is suggested that the algae may receive some advantage although what that might be is not well understood. This type of mutually beneficial symbiosis is essential for various ecosystems and highlights the complex interactions between species.

It is somewhat similar to more well-known symbiotic relationships, such as the mutualism observed between corals and their zooxanthellae algae, where corals receive nutrients from the algae in exchange for a protected environment.

Which description best matches the location of white matter?

Answers

I think the best description is the location in the spinal cord white matter is superficial then deep. The central nervous system has two types of tissue; the grey matter and the white matter, Grey matter, which has a pinkish-grey color in the living brain, contains the cell bodies, dendrites and axon terminals of neurons, so it is where all synapses are. White matter is made of axons connecting different parts of grey matter to each other.

What would most likely happen is the decomposers are removed from the carbon cycle?

Answers

Answer: The amount of carbon dioxide in the atmosphere will decrease, if the decomposers are taken out.

Decomposers, such as microbes and fungi, play an important role in the carbon cycle. They break down the remains of dead plants and animals and, in doing so, release carbon dioxide through respiration.
~Deceptiøn

Which two actions happen when bonds in ATP molecules are broken?

Answers

The ATP molecule is a high energy molecule. When a molecule of ATP breakdown, it produces chemical as well as thermal energy. The type of energy produced is mainly depends on the application for example, if the ATP breaks down to ADP, it produces thermal energy and if couples with a cellular process it produces chemical potential.

Our body needs energy to carry out cellular functions and the energy produced in a form of ATP is taken by cells to perform functions.

What are Gregor Mendel's four basic principles of genetics?

Answers

The Mendel's four postulates and laws of inheritance are: (1) Principles of Paired Factors (2) Principle of Dominance(3) Law of Segregation or Law of Purity of Gametes (Mendel's First Law of Inheritance) and (4) Law of Independent Assortment (Mendel's Second Law of Inheritance).
Hope this helped!!!

In the second stage of aerobic respiration, what happens to the electrons that have been depleted of their energy during atp production?

Answers

You've gotten 2 different answers so far and both can be considered correct. It depends on the source. Some books/teachers give 5 steps: .....glycolysis -> transition reaction -> Krebs cycle -> electron transport system -> chemiosmosis Some books/teachers don't list the transition reaction as a separate step, considering it as a minor setup step for the "real" second step, the Krebs cycle. .....glycolysis -> Krebs cycle -> electron transport system -> chemiosmosis Some books/teachers (wrongly) list only 3 steps as follows. .....glycolysis -> Krebs cycle -> electron transport system That's wrong because the electron transport system doesn't make any ATP: it just sets up the proton gradient that chemiosmosis uses to create the ATP. If the steps are to be collapsed into just 3, then the correct formulation would be: .....glycolysis -> Krebs cycle -> oxidative phosphorylation

The primary health care provider instructs the nurse to administer a 20% solution of mannitol to a patient who has cerebral edema. what does the nurse recall before administering the drug to the patient? to administer potassium supplements to maintain normal room temperature to store the drug in a brightly lit room to give oral rehydration salts with the drug

Answers

Among the given choices, the correct answer is "to maintain normal room temperature". The temperature of the drug is crucial to be maintained at normal room temperature, specifically at around 15 to 30 degrees Celsius; otherwise, in colder temperatures, the drug will crystallize and will be rendered useless. 

Based on this genetic information, which phylogenetic tree is most parsimonious? select the most parsimonious tree. if there is a tie, select both trees. (for help approaching this problem, open hint 2.)

Answers

Final answer:

The most parsimonious phylogenetic tree is one that implies the fewest character changes, namely the fewest reversals, independent changes, and total changes. To build these trees, scientists collect and analyze both morphologic and molecular data, then use cladistics to organize the events. However, without the specific trees to study, we can't identify the most parsimonious one.

Explanation:

Based on the idea of maximum parsimony, the most simple and obvious phylogenetic tree with the fewest character changes is considered the best. With this approach, the fewest number of character reversals, independent character changes, and total character changes throughout the tree, is most ideal. To construct the tree, scientists use character information, and morphologic and molecular data to identify homologous characteristics and genes. Once homologies are identified, cladistics helps to organize these elements to provide an evolutionary timeline with the least number of major divergences. So without the specific trees to inspect, we cannot identify the most parsimonious one, but now you know how to evaluate it when provided.

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Explain three differences between apomictic and automictic parthenogenesis.

Answers

apomictic refers to plants and it means the offspring is genetically identical to the parent. Automictic means that gametes fuse after meiosis - which means offspring are genetically not identical to parents.

A plant's progeny is said to be apomictic if it is genetically identical to its parent. Automictic reproduction occurs when gametes combine after meiosis, resulting in children that are genetically distinct from their parents.

What is apomictic and automictic parthenogenesis?

Apomictic parthenogenesis results in children who are exact clones of their mothers. Among them are aphids. Meiotic parthenogenesis is more challenging. Sometimes, the progeny are haploid (for example: male ants).

A haploid cell may duplicate its chromosomes via automixis (also known as automictic parthenogenesis), or it may combine with another haploid cell. In each instance, diploid zygotes mature into diploid adults.

In apomictic parthenogenesis, which is frequent in plants, the diploid germ line cells (gametocytes) undergo ordinary cell division, or mitosis, rather than meiosis to produce gametes; the children are clones of the mother. The children of automictic parthenogenesis, also known as automixis, are partially clones of the mother.

Therefore three differences between apomictic and automictic parthenogenesis are explained.

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Nora, who is pregnant, wakes at 2am craving pickles. the craving indicates

Answers

when women experience cravings for different foods, it means that they experiencing a hormone related change which severely effects their sense of taste and other senses that can cause these kinds of cravings.
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