Home Biology Plant Kingdom NCERT Examplar A prothallus is:
Biology Plant Kingdom NCERT Examplar Single Correct MCQ
Published on: August 27, 2026

A prothallus is:

A

A structure in pteridophytes formed before the thallus develops

B

A sporophytic free living structure formed in pteridophytes

C

A gametophyte free living structure formed in pteridophytes

D

A primitive structure formed after fertilisation in pteridophytes.

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Text Solution

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The correct answer is:
C

(c) Prothallus is usually a gametophytic stage in the life of a Pteridophyte. Spore germinates to form a prothallium, it is short-lived inconspicuous heart-shaped structure with a number of rhizoids developed beneath and sex organs, archegonium and antheridium.

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