Causes a mutation that is the basis for AZT, the antiviral drug used to treat HIV infections Group of answer choices UV light nitrous acid ionizing radiation benzpyrene base analog

Answers

Answer 1

Answer:

Ionizing radiation.

Explanation:

Mutation is the sudden change that is occur by exposing cells to the ionized radiation which change the genetic makeup of the cell. Due to mutation, the cell does not perform its normal function like before the mutation so when the mutation occurs in the cell, the genetic or DNA makeup is changed which make the environment unfavorable for the HIV virus and the virus can not cause any infection in the cell.


Related Questions

Describe the carbon atom:
O A clump of carbon
O A sole carbon particle

(choose one and explain it)

Answers

Explanation:

1.(from Latin: carbo "coal") is a chemical element with the symbol C and atomic number6. It is nonmetallic and tetravalent—making fourelectrons available to form covalent chemical bonds. It belongs to group 14 of the periodic table.[13] Carbon makes up only about 0.025 percent of Earth's crust.[14] Three isotopesoccur naturally, 12C and 13C being stable, while14C is a radionuclide, decaying with a half-lifeof about 5,730 years.[15] Carbon is one of thefew elements known since antiquity.[16]

2.

Newton's first law of motion states that an object will remain in motion in a straight line unless compelled to change direction by an external force.
Explain why satellites launched into orbit do not continue moving in a straight line. Make a connection between satellites and planets.


Answers

Explanation:

When satellites are launched into orbit, they are able to orbit around planets due to the gravitational force of attraction between the satellite and planet (usually there is no apparent change in motion of the planet because of its relative huge size than the satellite)

This gravitational force is in a different direction than the satellite's motion, therefore it keeps it orbiting around planets and does not continue moving in a straight line.

18. During meiosis, homologous chromosomes exchange genetic material. This exchange of
genetic material -

A. increases the genetic variation

B. reduces the diploid number to the haploid number

C. increases the haploid
number to the diploid number

D. reduces the probability of mutations

Answers

A. increases the genetic variation

that's why individuals don't look like their partents. This process is called crossing-over

During meiosis, homologous chromosomes exchange genetic material. This exchange of genetic material - A. increases the genetic variation.

During meiosis, homologous chromosomes may exchange genetic material during a process called "crossing over."

Crossing over takes place during the pachytene stage of Prophase I of Meiosis I where the non-sister chromatids of homologous chromosomes exchange genetic materialthis results in recombination of the genetic material and creates a new genetic combination. This results in variations, which can be beneficial to the offspring providing a better survival advantage.

So, the correct answer is Crossing over produces new combinations of genes on alleles, increasing genetic variation.

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what are the possible blood types of a child whose parents are both heterozygous for b blood type​

Answers

B is the answerrrrrrr

Answer:

I believe the answer is:

If both are BB, the child will be BB.  If one is BB and one is BO, the child has a 50% chance of being BB and 50% chance of being BO - both of which result in type B. However, if both parents are BO, there is a 25% chance of BB, a 50% chance of BO, and a 25% chance of OO (which results in type O).

Which of the following reproductive strategies are meant to ensure the survival of the offspring (at least two)?

One: A male sea horse carries its young in its sack.
Two: A peacock displays its bright, colorful feathers.
Three: Baby crocodiles travel on the back of its mother.
Four: A bee visits the flowers of a plant.
Five: A bird eats fruits from a tree.

(15 points for an answer, I'll come back and mark an answer as the Brainliest in a little while as well)

Answers

1 and 3 are the answers

Question:
Explain what monsoons are, where they are often found and what impact they have on
You must use complete sentences when answering this question
emironmemt

Answers

Answer:

i have this question too

Explanation:

The allele for a widow's peak has complete dominance over the allele for a straight hairline (w). What is the probability of two parents heterogeneous for a widow's peak (Ww) having an offspring without a widow's peak?

Answers

Answer:

The chance of producing a widow's-peak offspring is 3/4. Widow's edge, which is a recessive trait, is a dominant trait over straight hairline.

What do animal cells need to make energy?

Answers

Answer: Eating.

Explanation:

Animals obtain energy by eating plants or animals. The only form of energy a cell can use is a molecule called adenosine triphosphate (ATP). Chemical energy is stored in the bonds that hold the molecule together. ADP can be recycled into ATP when more energy becomes available.

Answer:

Food

Explanation:

Animals obtain energy when they eat. So do we, because we have animal cells! If you don't eat you will get weak and your body needs the nutrients that it gets from the food that you eat. So to make adenosine triphosphate (ATP), you need energy and some other factors that go into making ATP.. but that is the just of it.

You need food.

Hope this helps!

Michaela spend the day at the lake with some friends. She spends some time exploring the lake as she looks around she notices that there are plants only in certain areas where would she see plants growing? Why?

Answers

Answer:

She would mostly see plants grow around the banks of the lake. In addition, she might see some plants growing in the lake. The plants are majorly aquatic plants. The ones on the banks are emergent plants because their roots are submerged in water and their foliage is above water. They grow on the shores because it shallow there. Free-floating aquatic plants may grow in the lake because they are suspended on the water surface with their roots just floating underneath the water surface.

Give an example from the passage of how two or more animals are connected to each other, and why the connection is important for the ecosystem.
Answer

Answers

Answer:

have a great day : )

Explanation:

The passage is not found here but two or more animals are connected to each other due to trophic relationships, which maintain the ecosystem homeostasis.

What is ecosystem homeostasis?

The expression 'ecosystem homeostasis' makes reference to the overall state of equilibrium of an ecosystem.

The interaction of animals through trophic networks is critical for reaching ecosystem homeostasis.

In conclusion, the passage is not found here but two or more animals are connected to each other due to trophic relationships, which maintain the ecosystem homeostasis.

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HELP ASAP PLEASE!! DUE IN 10 MINUTES !!! based on these results which statement correctly predicts what will happen to red blood cells when they are placed in a beaker containing a water solution in which the salt concentration is much higher than the salt concentration in the red blood cells
A:the red blood cells will absorb water and increase in size
B:the red blood cells will lose water and decrease in size
C:red blood cells will of first absorb water than lose water and maintain their normal size
D:the red blood cells will first lose water then absorb water and finally double in size ​

Answers

Answer:

The correct answer is - option B. the red blood cells will lose water and decrease in size.

Explanation:

The movement of the water takes place always from the high concentration region of solute to the low concentration of solute through a semi-permeable membrane. In this case, the representation is showing that placing the cell inside a solution with low concentration solute than the cell makes the cell increase the size, and placing it in a solution high concentration of solute makes it decrease in size due to the transfer of water from more water to the low water area.

Now placing the RBC in a solution with more salt concentration than the cell makes the solution hypertonic which means the solution has more solute concentration and less water so the water move from cell to the solution and cell will shrink and decrease in size.

Which is a reactant in the Calvin cycle?
A. Glucose
B. Oxygen
C. Carbon dioxide
D. Water

Answers

C. Carbon dioxide


The inputs are carbon dioxide from the air and the ATP and NADPH produced by the light reactions. The Calvin cycle uses carbon from the carbon dioxide, energy from the ATP, and high-energy electrons and hydrogen ions from the NADPH. The cycle's output is an energy-rich sugar molecule.

The reactant of the Calvin cycle is the carbon dioxide that is present in Option C, and the product of the Calvin cycle is glucose. The Calvin cycle takes place during the photosynthetic reaction.

What is the role of photosynthesis?

Photosynthesis is a process in which the plant plays an important role, such as when the plant absorbs the sun's light, water, and carbon dioxide and then produces oxygen and glucose by combining all of these elements; thus, glucose and oxygen are the products, and water and carbon dioxide are the reactants. The water is used in the light-dependent reaction and converted into oxygen as a product, while in the case of the Calvin cycle or the light-independent reaction, carbon dioxide is used as the reactant and the product that is formed is glucose.

Hence, the reactant of the Calvin cycle is the carbon dioxide that is present in Option C.

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two importance of proteins in human​

Answers

Answer:

Growth and Maintenance. Your body needs protein for growth and maintenance of tissues. Yet, your body’s proteins are...

Causes Biochemical Reactions. Enzymes may also function outside the cell, such as digestive enzymes like lactase and...

Acts as a Messenger. Some proteins are hormones, which are chemical messengers...

Explanation:

your welcome

Yogurt,cheese, and other foods are produced through alcoholic fermentation. True or false?

Answers

True these are both examples of food produced through alcoholic fermentation

True these are both examples of food produced through alcoholic fermentation.

What is Alcoholic fermentation?

The chemical reaction that produces alcohol is known as alcoholic fermentation. In essence, beer, wine, sake, and cider all begin with yeast eating a type of sugar, which is the basis for this process.

Even hard liquors, such as your preferred tequila, begin with a straightforward alcoholic fermentation.

Alcoholic fermentation produces three primary byproducts. Alcohol, which has historically been a crucial component of beer, wine, and hard cider, is one of them, which is not surprising.

Therefore, True these are both examples of food produced through alcoholic fermentation.

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Select the correct word to complete the sentence.


The desert might seem like an unlikely place to find fish. There are long dry periods between rains when most surface water evaporates. Nonetheless, about 30 species of desert pupfish live in the American Southwest. Very hot water, unpredictable weather, high salt content, and predators are all sources of blank for the pupfish.
The answers are hormones, stress, response or homeostatis

Answers

Answer:

I think its homeostatis

Explanation:

Answer:

stress?

Explanation:

it isnt homeostasis or hormones or response

since it's a big change and extreme constant changes this seems like stress to the pupfish

i have the same question at the moment and will edit this response if it was right or not

The chart shows codons and their corresponding amino acid. What amino acid is represented by the codon CAC

Answers

By looking at this chart you can see that the codon CAC codes for histidine

Eukaryotic cell division requires?​

Answers

Answer:

Division of NucleusDivision of Cytoplasm

I hope this helps!

Answer:

Eukaryotic cell division requires?​, :   first they have too divide their nucleus, followed by dividing their cytoplasm, to complete the division of cells.

- hope this helps

by chance may I get brainliest

:)

Requires the use of energy to molecules.
Diffusion
Osmosis
Active transport

Answers

Active transport is the answer. Hope this helps

explain why people sleep under mosquito nets in some parts of the world​

Answers

Answer:

A mosquito net is a type of meshed curtain that is circumferentially draped over a bed or a sleeping area, to offer the sleeper barrier protection against bites and stings from mosquitos, flies, and other pest insects, and thus against the diseases they may carry

People sleep under mosquito nets from some parts of the world because so they can be protected to the mosquitoes and they have a little/a lot of mosquitoes. Also it’s possible that they can have a dengue because of a mosquito thats why they have mosquito net.

Hope this helps

Drag the tiles to the correct boxes to complete the pairs. Match the nutrient molecules with their breakdown products.

The image attached shows the options for the pairs. ​

Answers

Amino acids = proteins
Glucose = carbohydrates
Triglycerides = fats

Hope this helps and happy Thursday! :)

The nutrient molecules with their breakdown products are proteins ,carbo,fats as per the observation.

What is Hydrolysis ?

Hydrolysis is a chemical response for the duration of which polymers (huge molecules) are damaged down into monomers (small molecules)

TGs are damaged down into fatty acids and glycerol, and then each can function substrates for electricity generating and metabolic pathways.Your frame breaks down carbohydrates into glucose.The digestion of protein involves breaking the complicated molecule first into peptides, every having some of amino acids, and 2d into character amino acids.

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How much energy is converted into chemical energy or heat when it transfers between trophic
levels?
A
90%
B. 50 %
C. 25%
D
10%

Answers

Answer:

I think the answer is D

Explanation:

Many plants can reproduce both sexually and asexually. For example, rose bushes reproduce asexually when cuttings planted in the ground grow roots and become a new rose bush. They can also reproduce sexually when their flowers are pollinated. What is the primary advantage of sexual reproduction in roses?

Choose the correct answer.

(1 point)
A.
Roses can produce more offspring in sexual reproduction.
B.
Roses reproduce more quickly when reproducing sexually.
C.
Roses produced through sexual reproduction have more genetic variation.

Answers

Answer:

C. or A. but I think u should try C. first sorry if I'm wrong

plants reproduction can also reproduce sexually when their flowers are pollinated. They can also reproduce sexually when their flowers are pollinated. Roses produced through sexual reproduction have more genetic variation.

what is reproduction in plants ?

Reproduction in Flowering Plants occur both asexually and sexually, flowering plants or angiosperms, use the sexual mode of reproduction.

Reproduction in Flowering Plants occurs in the flower as  both male and the female gametes are present in it, various parts of flower involve in the process of reproduction.

There are four important steps in the reproduction of flowering plants. such as Pollination, Gametogenesis, Fertilization

The flower is a specialized structure where reproductive part of the plant, containing the male and female reproductive organs which facilitate fertilization.

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If a crocodile encountered a pod of dolphins in the sea, what would happen?

Answers

Answer:

The thing that would most likely happen is that the dolphins would be attacked.

Explanation:

How does melting glaciers affect the water cycle

Answers

Answer:

According to the National Snow and Ice Data Center (NSIDC), if all glaciers melted today the seas would rise about 230 feet (70 meters). During the last ice age (when glaciers covered more land area than today) the sea level was about 400 feet (122 meters) lower than it is today.

Explanation:

Drag each statement to the correct location on the table
Match the characteristics with the states of matter.

Solid

Liquid

Gas

has a definite shape
and volume

has definite volume
but does not have a
definite shape

does not have
a definite shape
or volume

changes to liquid
on cooling

changes to solid
on cooling

changes to liquid
on heating


which go to which

Answers

Answer:

1. Solid

2. Liquid

3. Gas

4. Gas

5. Liquid

6. Solid

Solid
1. Has a definite shape and volume
2. Changes to liquid on heating

Liquid
1. Has definite volume but does not have a definite shape
2. Changes to solid on cooling

Gas
1. Does not have definite shape or volume
2. Changes to liquid on cooling

just a simple multiple choice question. its times, ple help

Answers

What do you need help with ?

Answer:

do you remember the questions?

Explanation:

please help me i'll give brianliestttt

Answers

Its b mark my word trust me

Jacob a 40 year old man who is 6 foot tall and weighs 225 pounds has been diagnosed with atherosclerosis. What healthcare plan would you design for this patient? prescribe a medication to reduce bad cholesterol and no other changes need to be made. patient is just slightly overweight and she is worrying to much about his health, therefore no change. patient should make lifestyle changes to healthier foods and start an exercise plan to reduce his weight by 30 pounds prescribe a medication that lowers blood pressure and no other changes need to be made.

Answers

Answer:

The patient should make lifestyle changes to healthier foods and start an exercise plan to reduce his weight by 30 pounds.

Explanation:

We know that the patient weighs 225 pounds, and his height is 6 feet. With this information, we can determine his Body Mass Index (BMI) using the formula:

BMI= weight/(height)²

BMI= 225/(6)²

BMI= 30.5

Once that we calculated his BMI, we compare the result with the reference chart, here we can see that for his height. he is obese. This coincides with the fact that he has been diagnosed with atherosclerosis. His body has been placing the extra fat in the arteries.

The best plan for Jabob would be to make a lifestyle change to healthier foods and an exercise plan that helps him to lose weight so that his BMI would be approximately 25 and his weight of 195 pounds. Also, this plan will reduce cholesterol levels.

If there is plenty of sunshine and rain for producers to grow and increase in numbers, which of the following will result?
I. Increase in 1st Level Consumers
II. Increase in 2nd Level Consumers
III. Increase in Biodiversity

Answers

I. increase in 1st level consumers

The researchers predicted that for any particular concentration of substrate, the C. Aurantiacus enolase catalyzedreaction is more rapid at 55 C. Than at 37 C. Provide reasoning to justify the researchers prediction.

Answers

Answer:

It's justified because an increase in temperature will lead to increase in the enzyme catalyzed reaction

Explanation:

Now, as the temperature is increasing, the kinetic energy of molecules will also be increasing and this implies that the collision between the substrate and enzyme will increase i.e substrate that's attached to its appropriate active site of enzyme that results in an increase in reaction.

However, if the temperature is too high, it can cause the enzymatic activity to denature.

In summary, when talking about catalyzed reactions, an increase in temperature will cause the bond between molecules to loosen and this results in catalyzation.

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