Sexual Reproduction In Flowering Plant Question 25
Question: Read the assertion and reason carefully:
Assertion : Megaspore mother cell undergoes meiotic division. Reason : One of the four megaspores develops into the female gametophyte.
Options:
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
Show Answer
Answer:
Correct Answer: C
Solution:
One hypodermal nucellar cell of the micropylar region differentiates into the sporogenous cell.
It forms a diploid megaspore mother cell or megasporocyte.
The megaspore mother cells undergo meiosis and form a row of four haploid megaspores.
Only the chalazal megaspore remains functional, enlarges and gives rise to the female gametophyte, also called embryo sac.
BETA
