HARD
12th CBSE
IMPORTANT
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Write the changes a fertilized ovule undergoes within the ovary in an angiospermic plant. 

Important Questions on Sexual Reproduction in Flowering Plants

MEDIUM
12th CBSE
IMPORTANT

Why does endosperm development precede embryo development in angiosperm seeds?  State the role of endosperm in mature albuminous seeds.

HARD
12th CBSE
IMPORTANT
Describe with the help of three labelled diagram the different embryonic stages that include mature embryo of dicot plants.
HARD
12th CBSE
IMPORTANT

A flower of tomato plant following the process of sexual reproduction produces 240 viable seeds. What is the minimum number of pollen grains that must have been involved in the pollination of its pistil?

HARD
12th CBSE
IMPORTANT

A flower of tomato plant following the process of sexual reproduction produces 240 viable seeds. What would have been the minimum number of ovules present in the ovary?

HARD
12th CBSE
IMPORTANT

A flower of tomato plant following the process of sexual reproduction produces 240 viable seeds. How many megaspore mother cells were involved?

HARD
12th CBSE
IMPORTANT

A flower of tomato plant following the process of sexual reproduction produces 240 viable seeds. How many male gametes were involved in this case?

HARD
12th CBSE
IMPORTANT

Explain the events after pollination leading to the formation of a seed in angiosperms.

MEDIUM
12th CBSE
IMPORTANT
Mention the ploidy levels of the cells of different parts of an albuminous seed.