Question

Read the following statement and answer the questions that follow :  (5)

"A guava fruit has 200 viable seeds."

(a) What are viable seeds?

(b) Write the total number of :

(i) Pollen grains (ii) Gametes

in producing 200 viable guava seeds.

(c) Prepare a flow-chart to depict the post-pollination events leading to viable-seed production in a flowering plant.
 
OR

(a) Arrange the following hormones in sequence of their secretion in a pregnant woman.

(b) Mention their source and the function they perform :

hcG, LH, FSH, Relaxin 

CBSE Class XII Biology Question Paper 2017

Answer 1

viable seeds are highly hybrid seeds from which plants grow easily

Answer 2

VIABLE SEEDS IS THE ANSWER