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What does polymerase chain reaction (PCR) do? O A. Makes more copies of a sample of DNA O B. Provides an overall picture of a person's chromosomes O C. Cuts a DNA sample into fragments O D. Separates DNA
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What does polymerase chain reaction (PCR) do?

O
A. Makes more copies of a sample of DNA
O
B. Provides an overall picture of a person's chromosomes
O
C. Cuts a DNA sample into fragments
O
D. Separates DNA fragments by size

User Fool
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Answer:

Makes more copies of sample of DNA

Step-by-step explanation:

a p e x

User Zorglub
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Answer:

A. makes more copies of a sample of DNA

User Kelley Robinson
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