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

Question

3 years ago

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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] · Answer 1 · 2022-08-14T12:31:22+03:00

Answer:

D. Use the polymerase chain reaction.

Explanation:

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

Option B is incorrect because nucleic acid probes are only useful in detecting mRNA.

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

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

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.