Biology MCQs with Answers | Biology Multiple Choice Questions and Answers

Questions

1 The term 'gene' was first used by

A Johannsen

B Mendel

C Lemark

D Cuvier

Answer: Option [A]

2 Wilkins X-ray diffraction showed the diameter of the DNA helix as

A 10A

B 20A

C 30A

D 40A

Answer: Option [B]

3 The number of autosomes in man is

A 22 pairs

B 11 pairs

C 43 pairs

D 23 pairs

Answer: Option [A]

4 A normal metaphase chromosome with a midial centromere is:

A metacentric

B sub-metacentric

C acrocentric

D telocentric

Answer: Option [A]

5 Lampbrush chromosomes are found inside

A Salvary glands of Drosophila

B Salvary gland of silk moth

C Oocytes of frog

D Nucleus of man

Answer: Option [C]

NCERT Class 12 Biology Solved Multiple Choice Questions