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 produc…

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 :

1. A is not correct but R is correct.

2. Both A and R are correct and R is the correct explanation of A.

3. Both A and R are correct but R is NOT the correct explanation of A.

4. A is correct but R is not correct.

Doubtly Asked 30 Oct 2026 NEET UG 2023 Practice test neet Save WhatsApp Report

1 answer

Best answer

Answer: 2. Both A and R are correct and R is the correct explanation of A.

Key idea: In mosses the haploid spore germinates into a creeping, green, filamentous protonema, which is the first stage of the gametophyte.

Assertion A is correct: protonema is the first gametophytic stage; the leafy stage develops later from it as a lateral bud.
Reason R is correct: spores formed in the capsule (sporophyte) germinate directly into protonema.

R explains why protonema is the first stage, so option 2 is right.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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