Question

Dr. Tanaka discovered a new virus. The virus has a single strand of a nucleic acid, but she does not know if it is DNA or RNA. After running tests, she concludes that it is DNA. Which of the following would lead her to that conclusion?

Select {responseValue}
It contains adenine.

Select {responseValue}
It contains thymine.

Select {responseValue}
It contains uracil.

Select {responseValue}
It contains cytosine.

...

Answer 1

It contains adenine. — False (adenine is found in both DNA and RNA)

It contains thymine. — True (thymine is present in DNA but not RNA)

It contains uracil. — False (uracil is found in RNA, not DNA)

It contains cytosine. — False (cytosine is found in both DNA and RNA)