458,411 views
10 votes
10 votes
What makes the rungs or steps of the DNA molecule?

deoxyribose
phosphate group
nitrogenous bases​

User Sandoz
by
3.0k points

1 Answer

17 votes
17 votes
Nitrogenous bases— adenine-thymine pair or a guanine-cytosine pair.
User Laurent Debricon
by
3.1k points