Question

question 2
to which carbon can another nucleotide be added to?
carbon 3
carbon 2
carbon 4
carbon 5

Explanation:

In nucleic - acid synthesis, nucleotides are added to the 3' carbon of the existing nucleotide chain. A phosphodiester bond is formed between the 3' - OH group of the last nucleotide in the chain and the 5' - phosphate group of the incoming nucleotide.

Answer:

A. Carbon 3