Question

Dehyration involving elimination of a water moiety is not seen during which of the following?
(a) Formation of a glycosidic bond
(b) Formation of a phosphoester bond
(c) Formation of a disulphinde bond
(d) Formation of a peptide bond
(e) Pairing between thymine and adenine on two antiparallel strands of DNA.

• A. c, d & e
• B. a & b only
• C. a, b, c & d
• D. c & e only

Answer 1

The correct option is D c & e only

a)In the formation of glycosidic bond one water molecule is released.

b)in the formation of phosphodiester bond one water molecule is released.

c)In the formation of disulphide bond, water molecules are not released.

d)In the formation of peptide bond, one water molecules is released.

e)Pairing between thymine and adenine on two antiparallel strands of DNA. one water molecule is released.

So, the correct option is 'c & e only'.