Question

The nitrogenous element common to nucleic acids, proteins and chlorophyll is:
a)Carbon
b)Oxygen
c)Nitrogen
d)All of the above

Answer 1

Answer:

Primary elements are those protoplasmic elements (carbon, hydrogen, oxygen, nitrogen, phosphorous and sulphur) which become a constituent of protoplasmic components like nucleic acids, proteins, chlorophyll etc. Carbon, hydrogen and oxygen are the basic framework elements which are required for synthesis of all the biomolecules.

Explanation:

that is the best answer