Q. Nucleotide consists of
A) Phosphate only
B) Phosphate and sugar only
C) Phosphate, sugar and nitrogen base
D) Phosphate and nitrogen base only
Explanation
A sugar molecule and a nitrogenous base form a nucleoside, and a nucleoside plus a phosphate group form a nucleotide. The nucleotides of RNA are called ribonucleotides, and those of DNA deoxyribonucleotides. Ribonucleotides contain the sugar ribose and deoxyribonucleotides contain the sugar deoxyribose.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.