Apaleontologist has recovered a bit of tissue from the 400-year-old preserved skin of an extinct dodo (a bird). to compare a specific region of the dna from a sample with dna from living birds, which of the following would be most useful for increasing the amount of dodo dna available for testing?
a. snp analysis
b. polymerase chain reaction (pcr)
c. electroporation
d. gel electrophoresis

b. polymerase chain reaction (PCR)

Explanation:

In this reaction, a molecule of double stranded DNA is denatured and the chains separated. Then, the single strands of DNA are hybridized with a small complementary fragment of DNA called a primer, which is then extended by an enzyme called DNA polymerase by adding complementary nucleotides to the template strand. The result will be two double stranded DNA molecules. If you repeat the process many times, you can amplify the original DNA material exponentially, and the final PCR product will be millions of DNA molecules that can be used for testing.

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explanation:

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