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schepotkina [342]
3 years ago
8

Archaeologists unearthed a human skull with a small dried fragment of the scalp still attached. They extracted a tiny amount of

DNA from the scalp tissue. How could they obtain sufficient DNA for an analysis of the ancient human's genes?A. Subject the DNA to electrophoresis.B. Use a nucleic acid probe.C. Subject the specimen to amniocentesis.D. Use the polymerase chain reaction.E. Subject the DNA to restriction enzymes.
Biology
1 answer:
puteri [66]3 years ago
5 0

Answer:

D. Use the polymerase chain reaction.

Explanation:

<em>Option A is incorrect because subjecting the DNA to electrophoresis will only identify, purify or quantify the DNA.</em>

<em>Option B is incorrect because nucleic acid probes are only useful in detecting mRNA.</em>

<em>C is incorrect because amniocentesis is just a medical procedure involving the removal of amniotic fluid for the purpose of analysis.</em>

<em>Option E is not correct because restriction enzymes will only cut the DNA at specific points.</em>

The correct option is D. Polymerase chain reaction is a procedure in molecular biology that is utilized to amplify or multiply a copy of DNA.

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