Question

multiple choice question
dna and rna use different nitrogenous bases. dna uses ____, while rna doesnt. rna uses ____, while dna doesnt.

tymine; adenine
guanine; uracil
thymine; uracil
cytosine; adenine

Explanation:

DNA contains the nitrogen - containing base thymine. RNA has uracil instead of thymine. Adenine, guanine, and cytosine are present in both DNA and RNA.

Answer:

C. thymine; uracil