134k views
4 votes
What makes the rungs or steps of the DNA molecule?

deoxyribose
phosphate group
nitrogenous bases​

User Owolabi
by
7.1k points

1 Answer

3 votes
Nitrogenous bases— adenine-thymine pair or a guanine-cytosine pair.
User Amitai Fensterheim
by
8.0k points