Of the four nitrogen bases in DNA, which two or purines and which two are Pyrimidines
A. Adenine-thymine; uracil- cytosine
B. Adenine- thymine; guanine- cytosine
C. Adenine- guanine; thymine- cytosine
D. Uracil-thymine; guanine- cytosine
Answer: B
Biology Questions and Answers.
A. Adenine-thymine; uracil- cytosine
B. Adenine- thymine; guanine- cytosine
C. Adenine- guanine; thymine- cytosine
D. Uracil-thymine; guanine- cytosine
Answer: B