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

Important Questions on Sexual Reproduction in Flowering Plants

MEDIUM

12th CBSE

IMPORTANT

TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 2 - Sexual Reproduction in Flowering Plants>TEST QUESTIONS>Q 21

Describe any two devices in a flowering plant which prevent both autogamy and geitonogamy.

HARD

12th CBSE

IMPORTANT

TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 2 - Sexual Reproduction in Flowering Plants>TEST QUESTIONS>Q 21

Explain the events up to double fertilization after the pollen tube enters one of the synergids in an ovule of an angiosperm.

HARD

12th CBSE

IMPORTANT

TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 2 - Sexual Reproduction in Flowering Plants>TEST QUESTIONS>Q 2

Shreya was walking along with her young brother Srijjan in the garden. Suddenly Srijjan's attention was drawn towards a butterfly that was visiting one flower after another. He asked Shreya what was the butterfly doing. Shreya told her younger brother about honey collection and pollination by the butterfly. What values were highlighted by Shreya?

HARD

12th CBSE

IMPORTANT

TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 2 - Sexual Reproduction in Flowering Plants>TEST QUESTIONS>Q 3

How are rice and wheat pollinated? Why is normal pollination absent in the two despite the flowers being chasmogamous?

HARD

12th CBSE

IMPORTANT

TRUEMAN'S ELEMENTARY Biology VOL. II For XII Class of 10+2>Chapter 2 - Sexual Reproduction in Flowering Plants>TEST QUESTIONS>Q (1)

Unisexuality of flowers prevents

MEDIUM

12th CBSE