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?
A. It contains cytosine.
B. It contains thymine.
C. It contains uracil
D. It contains adenine

Answer 1

Answer:

Explanation:

I believe it is b

Answer 2

Dr. Tanaka can conclude that the genetic material of this virus is DNA because it contains thymine (Option B).

In DNA, there are four types of nucleotides, each one containing one different nitrogenous base.

These four nitrogenous bases are Adenine, Guanine, Cytosine and Thymine.

Moreover, in RNA, Uracil bases replace Thymine bases.

In conclusion, Dr. Tanaka can conclude that the genetic material of this virus is DNA because it contains thymine (Option B).

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