HARD
12th CBSE
IMPORTANT
Earn 100

A mature embryo sac in a flowering plant may possess 7- cells but 8- nuclei. Explain with diagram

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 19
Mention the ploidy of the different types of cells present in the female gametophytes of angiosperms.
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 20
A pollen grain in angiosperms at the time of dehiscence from an anther could be 2 celled or 3 celled. Explain. How are the cells placed within the pollen grains when died at a 2- celled stage?
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
“ Pollen grain in wheat are shed at 3- celled stage while in pea they are shed at 2- celled stage”. Explain. Where are germ pores present in a pollen grain?
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 22
How many cells are present in the pollen grain at the time of their release from anther? Name the cells.
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 1
Write the characteristic features of the anther, pollen and stigma of wind-pollinated flowers.
EASY
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
 How do flower reward their insect pollinators? Explain.
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

Mention any four strategies adopted by flowering plants to prevent self-pollination.

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 2
Why is geitonogamy also referred to as genetical autogamy.