Question

( need asap :) )What is the key to the linking of nucleotides that form the sugar-phosphate backbone of DNA?
A. a weak hydrogen bond
B.a covalent bond
C.a polar bond
D.a phosphoester bond

Answer 1

Answer: D

Explanation:

I believe that’s the best choice but then again it’s a diester bond not a single eater bond but I guess that’s close enough.