set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

Recombination involves

a) chromosome duplication

b) crossing over

c) spindle formation

d) cytokinesis

Question : 2

Survival of plants in terrestrial environment has been made possible by the presence of

a) parenchymatous tissue

b) conducting tissue

c) intercalary meristem

d) apical meristem

Question : 3

Angiosperms have

a) tracheids only

b) tracheids and vessels

c) vessels only

d) tracheids and albuminous cells

Question : 4

In cell cycle, DNA replication takes place in

a) G2 phase

b) G1 phase

c) Mitotic metaphase

d) S phase

Question : 5

Chromosomes contain hereditary units called

a) RNA

b) ribosomes

c) genes

d) DNA

Question : 6

Pollination takes place in

a) Pteridophyta

b) Gymnosperms

c) Both (a) & (b)

d) None of these