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avanturin [10]
3 years ago
5

Why is heating and cooling necessary when doing the pcr method?

Biology
1 answer:
pav-90 [236]3 years ago
4 0

A PCR is used to amplify DNA. The heating breaks the hydrogen bonds and ensures that the double-stranded DNA helix is melted such that the two strand separate. The cooling ensures that the introduced DNA primers bind with the single strands so that elongation of the chain (to form a new double helix) can be possible by DNA polymerase.

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Freud is to ________ as rogers is to ________.
Vaselesa [24]
Freud is to free association, while on the other hand, Rogers is to active listening. These are great people who modeled the foundation of psychology as what we understood right now. Sigmund Freud is the founder of psychoanalysis while Rogers is the founder of the humanistic approach to psychology.
7 0
3 years ago
1. What does Kes73 have that makes it interesting to astronomers?
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The thing that makes kes73 interesting to astronomers is ; ( A ) A second star.

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Hence we can conclude that the thing that makes kes73 interesting to astronomers is the presence of a second star

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3 years ago
Jessica's teacher has asked her to bring her 0.40 moles of sodium chloride to the laboratory. she should bring approximately ___
tigry1 [53]
ʜᴇʟʟᴏ ᴛʜᴇʀᴇ!
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Formula mass of NaCl = 58.5g
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6 0
3 years ago
Imagine an exercising muscle cell that requires a constant supply of oxygen to avoid fatigue. At which of the following distance
KiRa [710]

Answer:

b. 100nm

Explanation:

The correct answer to the given question is 100nm. Low level of oxygen is observed when active fibers are at a distance of 50m or more than 50m from the perfused capillary, this is why the correct answer to the given question is 100nm, which is the option b. in the given question.

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3 years ago
What biological macromolecule is made up of monomers like the one shown below?
mario62 [17]

are you gonna give me the user and pass

4 0
3 years ago
Read 2 more answers
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