Respuesta :
Answer:
I believe A. The sugars control whether it forms DNA or RNA.
Explanation:
Answer:
A
Explanation:
The first is a distinct nitrogenous base, which is adenine, cytosine, guanine or thymine. In RNA, thymine is replaced by uracil. ... These sugars determine whether the nucleotide will form part of a DNA or a RNA molecule, and form part of the phosphodiester bonds which link several nucleotides.