When and where does reduction division take place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an angiosperm?

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Chapter 3

NCERT

Class 11

Biology

Solutions

When and where does reduction division take place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an angiosperm?

Question:

When and where does reduction division take place in the life cycle of a liverwort, a moss, a fern, a gymnosperm and an angiosperm?

Answer:

Reduction division (meiosis) occurs during spore formation:

Liverwort and moss: in the sporangium of the sporophyte.
Fern: in the sporangia (on sporophylls) of the sporophyte.
Gymnosperm: in microsporangia (pollen mother cells) and megasporangia (ovule) of the sporophyte.
Angiosperm: in pollen mother cells (microspore formation) and megasporocyte/ovule (megaspore formation) of the sporophyte.

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