Which bases are found in a strand of dna?
thymine, guanine, cytosine, uracil
guanine, cytosine, uracil, adenine
cytosine, glycine, adenine, thymine
adenine, thymine, guanine, cytosine

The correct answer is Adenine, thymine, guanine, cytosine.

DNA stands for Deoxyribonucleic acid. It is made up of two complementary strands. There are four nitrogenous base present in the DNA strand. These are-

Adenine (A), thymine (T), guanine (G), and cytosine (C).

These bases pair with bases on the complemenatry strand according to the  Watson and Crick base pairing ( A=T, G ≡ C ).

Uracil is another nitrogenous base. But it is present in RNA in place of Thymine.

Thus, bases found in the DNA are Adenine, thymine, guanine, cytosine.

the answer

b.) bowling ball