Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R). In the light of the above statements, choose the correct answer from the options given below :
- A is true but R is false
- A is false but R is true
- Both A and R are true and R is the correct explanation of A
- Both A and R are true but R is NOT the correct explanation of A
Answer
(1) A is true but R is false
Solution
Assertion is true: the mature embryo sac has 8 nuclei in 7 cells – 3 antipodals, 2 synergids, 1 egg cell and 1 large central cell containing 2 polar nuclei.
Reason is false: the egg apparatus consists of 2 synergids and 1 egg cell; the 2 polar nuclei are present in the central cell, not in the egg apparatus.
Answer: (1)