AZT is a drug that is commonly used to fight HIV infection. The active component of AZT is a nitrogenous base that mimics thymine. Normal nucleotides CANNOT covalently bond to the thymine mimic. HIV's reverse transcriptase enzyme will use the thymine mimic instead of using thymine, whereas our DNA polymerase will not make this mistake. What is the most likely explanation for how AZT prevents HIV replication

Answers

Answer 1
Answer:

AZT works by selectively inhibiting HIV's reverse transcriptase, the enzyme that the virus uses to make a DNA copy of its RNA. Reverse transcription is necessary for production of HIV's double-stranded DNA, which would be subsequently integrated into the genetic material of the infected cell to produce its proteins. All reverse transcriptase inhibitors are analogues of the naturally occurring deoxynucleotides needed to synthesize the viral DNA and they compete with the natural deoxynucleotides for incorporation into the growing viral DNA chain.


Related Questions

10. Three observers made the diagrams above to show what they think the Moon looks like when it is
seen from above (top view), In these diagrams, the sunlight is coming from the left, as shown by the
arrows. Which diagram is accurate and why?

Answers

Answer:

B

Explanation:

Can any body help me with this no website

Answers

I think the answers A

Which compound would most likely be found in all living organisms?
cellulose
ethanol
insulin
water

Answers

Answer:

water

Explanation:

its so obvious...

Answer:

cellulose and water .I think are answer

Analyze the Punnett square below and determine the the genotypic ratio. Axial flowers are dominant

Answers

Answer:

first answer choice

Explanation:

there's 1 AA, 2 Aa's, and 1 aa. the genotype is the combination of those letters, and the phenotype is what they would look like.

It’s the first one jjhhhhhvbbbbb

look at the picture also i dont know what this is so I just put biology ​

Answers

Answer:

millions of years

Explanation:

Takes a long time to form, so millions of years.

Lettuce, greenfly, ladybug, thrush, cat

Name the herbivore in the food chain.

Answers

Answer:

greenfly

Explanation:

ILL GIVE BRAINLIEST (RIGHT ANSWER ONLY)
Students in Ms. King's science class are researching the history of the cell theory and will write a blog to show what they have learned. Which of the following is the best choice for the introductory sentence?


A. A scientific theory, like cell theory, does not change.


B. A hypothesis, such as one about cells, usually becomes a theory.


C. Scientific theories, like those written about cells, are not as important as scientific laws.


D. Scientific theories, such as cell theory, are based on well-supported observations of nature.

Answers

Answer:

b just go with your gut 54

what is organic farming?

Answers

Answer:

Organic farming is a method of crop and livestock production that involves much more than choosing not to use pesticides, fertilizers, genetically modified organisms, antibiotics and growth hormones. ... provide attentive care that promotes the health and meets the behavioural needs of livestock

Gymnosperm ovules are fertilized twice, called double fertilization.



Group of answer choices

True

False

Answers

Answer:

false

Explanation:

Gymnosperm ovules are fertilized twice, called double fertilization.

Answer:
True

A mixture IS a pure substance
(True or false)

Answers

This is false,since it is mixed

Answer:

no

Explanation:

Matter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. ... A chemical substance is composed of one type of atom or molecule. A mixture is composed of different types of atoms or molecules that are not chemically bonded.

Which of the following most likely has the greatest
thermal energy?
A. water going over a waterfall
B. water in a lake
C. water from a hot water tap
O D. water vapor

Answers

It’s c since it’s thermal energy

the Sting of bees contains which acid ​

Answers

Answer:

Formic acid

Explanation:

It is a type of acid which causes the sting. The sting can be neutralised by applying a base.

Answer:

Histamine

Explanation:

It makes up 0.9% of venom, and causes itching and pain at the sites of the Sting.

Fred has four daughters. What is the probability that his fifth child will be a boy?
a. 100% b. 50% c. 25% d. 20%

Answers

This might be wrong but I think it’s 50%

Him having four other daughters shouldn’t play a roll in his fifth child gender. There’s a 50/50 chance he’ll have a boy or girl

A wasp lays eggs on an orb-weaving spider to...
a) force it to protect the wasp and it's larva.
b) make it provide a home and meal for it's larva.
c) use it to carry it's larva Long distance.
d) make it create a cocoon for the larva. ​

Answers

Answer:make it provide a home and meal for it's larva.

Explanation:i did a little bit of research, and the spider provides food and shelter for the larva

Scientists follow seismic waves to locate the epicenter.
Please select the best answer from the choices provided
T
F

Answers

Answer:  This is true, scientists do follow seismic waves.

Answer:

True, or T.

is what it is

When does energy transfer from air to the land?

Answers

Answer:

Conduction, radiation and convection all play a role in moving heat between Earth's surface and the atmosphere. Since air is a poor conductor, most energy transfer by conduction occurs right near Earth's surface

Explanation:

I hope this helps answer your question

Which part of the respiratory system that branches off of the trachea carrying oxygen farther into the lungs?
-lobs
-alveoli
-bronchioles
-bronchi

Answers

Answer:

-bronchi

Explanation:

Hope this helps

where on the map is Africa

Answers

Look in the picture i can't find the answer sorry :D hope it helps
It’s located near Asia (it’s to the southwest of Asia. Some countries touch the equator.

How are traits inherited by offsring?

Answers

answer:
a trait is a characteristic, such as color or size, that is inherited by an offspring from its parents. The genes that control a trait come in pairs, one gene from each parent. If a gene pair contains a dominant allele, then the offspring will show this dominant trait.

step by step:

Answer:

Traits are passed to offspring by the offspring parents.

Explanation:

the genes that control a trait come in pairs, one from each parent. If a gene pair contains a dominant allele (a variation of genes that will produce phenotype,) than the offspring gains that trait from the dominant parent.

HURRRRRRRRYYYYYYY!!!!!

Which statement BEST describes the relationship between photosynthesis and cellular respiration?

A
Both processes release energy in the form of heat.

B
Both processes use energy to form molecules of glucose.

C
The products of one process are the reactants in the other process.

D
The products of one process are the same products in the other process.

Answers

Answer:

b

Explanation:

??? help ??? please anyone

Answers

Answer:

B

Explanation:

which one is the lowest ,middle and highest between these magnification
10X
30X
40X​

Answers

Answer:

10X is lowest

30X is middle

40X is highest

Helppppppppppppppppp

Answers

Answer:

yes is right 75%

Explanation:

8. How are most seeds dispersed to a barren landscape?

Answers

Answer:

Some seeds are transported by the wind and are shaped to float, glide or spin through the air. ... Some seed pods are designed to explode and throw the seeds a good distance from the parent plant. Many plants also use animals to carry their seeds.

Explanation:

I DONT UNDERSTAND PLEASE HELP ME OUT

Answers

i guess metaphase? but i’m not sure since all of them are the phases of mitosis

What is the difference between
atoms and molecules

Answers

Answer:

Atoms are single neutral particles. Molecules are neutral particles made of two or more atoms bonded together.

Explanation:

Which substance do biochemists often search for in fossils to help better understand the evolutionary relationships of the organism that formed the fossil?

A.
DNA

B.
iron

C.
ATP

D.
oxygen

Answers

Answer:

B

Explanation:

The substance do biochemists often search for in fossils to help better understand the evolutionary relationships of the organism that formed the fossil - A.  DNA

DNA

is the genetic material that is found in every living organism that provides genetic information.

It also provides evidence of evolution.DNA sequences vary from species to species, but there are many overlapsThe ongoing branching of the sequencing produces multiple lines of descent.It can be inferred by comparing the DNA sequences of different organisms to check or find the evolutionary relationships of the organism that formed the fossil

Thus, The substance do biochemists often search for in fossils to help better understand the evolutionary relationships of the organism that formed the fossil - A.  DNA

Learn more:

https://brainly.com/question/13061899

Consider the sphere. A sphere. A is the great circle, B is the diameter, c is the radius, and d is the center. Identify the parts of a sphere. a is the b is the c is the d is the

Answers

I think it’s diameter

Answer:

a is the great circle

b is the diameter

c is the radius

d is the center

Explanation:

write short note on adaptations​

Answers

Answer:

Adaptation is the physical or behavioural characteristic of an organism that helps an organism to survive better in the surrounding environment.” Living things are adapted to the habitat they live in. This is because they have special features that help them to survive.

Explanation:

Living things are amazing I love adaption like turtles are so cute and dolphins are so beautiful!!

What is Chargoffs Rule?

A T and C G = ________ %

Answers

Answer:

Chargaff's rules state that DNA from any species of any organism should have a 1:1 protein stoichiometry ratio of purine and pyrimidine bases and, more specifically, that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine

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