Biotechnology-Principles-And-Processes Question 136

Question: A biologist intends to use a polymerase chain reaction to perform a genetic task. The biologist probably is trying to:

Options:

A) discover new genes.

B) clone a gene.

C) cut DNA into many small fragments.

D) isolate DNA from a living cell.

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Answer:

Correct Answer: B

Solution:

[b] PCR is a way to dramatically increase the numbers of a particular sequence of DNA (or an entire gene).

This technique is most useful when cloning DNA, since prior knowledge of the DNA sequence must first be obtained.