Solution: The DNA nitrogen bases that are pyrimidines are:  a. Cytosine and guanine b. Uracil and cytosine c. Thymine and cytosine d. Thymine and adenine e. Uracil and thymine

Problem

The DNA nitrogen bases that are pyrimidines are: 

a. Cytosine and guanine

b. Uracil and cytosine

c. Thymine and cytosine

d. Thymine and adenine

e. Uracil and thymine