Question

ANSWER ASAP PLZ!!!
What is the end result of using a technique known as polymerase chain reaction
is it B,C, OR D???

Answer 1

The answer is C; Many copies of a DNA Fragment

The specific DNA sequence has been doubled. This cycle of Denature-Anneal-Extend is repeated, usually about 35 times, by using a thermocycler over 2-3 hours (the "chain reaction" of PCR). This produces 34,359,738,368 copies of DNA (That's 2^35)!

Answer 2

PCR is a technique used which is used to amplify DNA so, many copies of a DNA fragment will get as a end result of using PCR.

What is DNA?

• DNA stands for deoxyribose nucleic acid.
• It is a self-replicating substance that makes up the majority of chromosomes in practically all living creatures.
• It carries genetic information of living beings.

What is PCR polymerase chain reaction?

• Kary B. Mullis, an American scientist, invented PCR in 1983.
• The polymerase chain reaction (PCR) is a laboratory technique used for rapidly amplifying millions to billions of copies of a single DNA region.
• PCR entails selecting a portion of the genome to be amplified using short synthetic DNA fragments called primers, followed by several rounds of DNA synthesis to amplify that segment.

Amplification is accomplished by a three-step process:-

1. Denaturation is the process of heating double-stranded DNA templates to separate the strands at 95°C.
2. Annealing is the process of short DNA molecules called primers binding to flanking regions of target DNA at 55°C.
3. Extension is the process of DNA polymerase extending the 3′ end of each primer along the template strands at 72°C.

These processes are performed 25–35 times to make precise copies of the target DNA exponentially.

Hence, the correct option is D.

To know more about PCR polymerase chain reaction here

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