| Direction: Each of these questions contains two statements Assertion [A] and Reason [R]. Each of these questions also has four alternative choices, any one of which is the correct answer. You have to select one of the codes [a], [b], [c] and [d] given below. |
| Assertion [A] The three cells of the egg apparatus are arranged in a triangular fashion. |
| Reason [R] The degenerating synergid forms the seat for pollen tube discharge in the embryo sac. |
A) Both A and R are true and R is the correct explanation of A
B) Both A and R are true, but R is not the correct explanation of A
C) A is true, but R is false
D) A is false, but R is true
Correct Answer: B
Solution :
[b] Both A and R are true, but R is not the correct explanation of A. The three cells in the egg apparatus are arranged in a triangular fashion as it enables the easy entry of male gametes. These enter the embryo sac within pollen tube through synergids. The synergids degenerate after the male gametes are discharged in the embryo sac.
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