Sawaal
1
Q:

Nucleotides are attached by bonds between the

A) phosphates and sugars B) nitrates and sugars
C) nitrates and phosphates D) sugars and hydrates

Answer:   A) phosphates and sugars



Explanation:

In DNA, adjacent nucleotides are linked by a phosphodiester bond: a covalent bond is formed between the 5' phosphate group of one nucleotide and the 3'-OH group of another.

 

Hence, in this manner, each strand of DNA has a "backbone" of phosphate-sugar-phosphate-sugar-phosphate.

Subject: Biology
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