Question

Prothallus means –
(a) Immature gametophyte
(b) Immature sporophyte
(c) Immature archegonium
(d) None of these

Answer 1

Explanation:

c is correct

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Answer 2

Immature Archegonium

Explanation:

  (c)  Prothallus means Immature Archegonium.

1. The prothallus grows autonomously for a little while.
2. It develops sex organs that produce ova(archegonia) and whipped sperm(antheridia).
3. The sperm can swim to the ova for preparation to frame a diploid zygote which isolates by mitosis to shape a multicellular sporophyte.
4. The prothallus is the plant gametophyte.
5. It is a green, photosynthetic structure that is one cell thick, normally heart or kidney molded, 3–10 mm long and 2–8 mm wide.