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Biology Chapter 17

Question:

9) Which of the following provides some evidence that RNA probably evolved before DNA?

A) RNA polymerase uses DNA as a template.

B) RNA polymerase makes a single-stranded molecule.

C) RNA polymerase does not require localized unwinding of the DNA.

D) DNA polymerase uses primer, usually made of RNA.

E) DNA polymerase has proofreading function.

Answer:
D) DNA polymerase uses primer, usually made of RNA.
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Last update by mayurcooled on 04/17/2014
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Biology Chapter 17
Biology Chapter 17
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Question: 9) Which of the following provides some evidence that RNA probably evolved before DNA? A) RNA polymerase uses DNA as a template. B) RNA polymerase makes a single-stranded molecule. C) RNA polymerase does not require localized unwinding of the DNA. D) DNA polymerase uses primer, usually made of RNA. E) DNA polymerase has proofreading function.
Answer: D) DNA polymerase uses primer, usually made of RNA.