Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R:Assertion A: The first stage of gametophyte in the life cycle of moss is protonema stage.Reason R: Protonema develops directly from spores produced in capsule.In the light of the above statements, choose the most appropriate answer from the options given below:
- ABoth A and R are correct and R is the correct explanation of A
- BBoth A and R are correct but R is NOT the correct explanation of A
- CA is correct but R is not correct
- DA is not correct but R is correct
Solution & Step-by-step Explanation
Assertion A is correct: The life cycle of a moss involves two gametophytic stages. The first is the protonema, which is a creeping, green, branched, and often filamentous stage.Reason R is correct: The protonema stage develops directly from the germination of haploid spores that were produced by meiosis within the capsule of the sporophyte.Since the reason describes exactly how the protonema stage initiates the gametophyte phase, R is the correct explanation of A.