Question

One difference between DNA and RNA is that

A) adenine is found only in RNA.
B) guanine is found only in DNA.
C) cytosine is found only in RNA.
D) thymine is found only in DNA.

Answer 1

A is the answer. Hope that helped.

Answer 2

D. Thymine is found only in DNA

Step-by-step explanation:

DNA is a long polymer with deoxyriboses and phosphate backbone. Having four different nitrogenous bases: adenine, guanine, cytosine and thymine.

RNA is a polymer with a ribose and phosphate backbone. Four different nitrogenous bases: adenine, guanine, cytosine, and uracil.