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Alternation of Generation in Different Divisions of Plants

In land plant...

Question

In land plants, by which of the following sequence does the diploid stage progress?

A

Gametophyte - male and female gametes

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B

Spores - sporophyte

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C

Zygote - sporophyte

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D

Zygote - gametophyte

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Solution

The correct option is C
Zygote - sporophyte

In land plants, the diploid zygote (first cell of the sporophytic generation) develops to form the multicellular sporophyte.

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Q. A plant body first undergoes asexual reproduction by forming spore and then the spore develop into gametophytes which produce gametes. Later these gametes fuse to form zygote. The zygote once again develops into a sporophyte. In which subdivision can we find this type of alternation of generation?

Q. A: The haploid plant body (gametophyte) produces gametes by mitosis
R: Diploid sporophytic plant body produces spores by meiosis

Q. Rearrange the following events starting from the formation of the zygote in Marchantia :
I. Formation of sporophyte
II. Spore germination
III. Formation of gametophyte
IV. Gamete formation
V. Reductional division
VI. Formation of spores
VII. Syngamy

Q. In pteridophytes
(a) Spores are always of two kinds
(b) Vascular tissues are present
(c) The sporophyte is parasitic over the photosynthetic gametophyte
(d) The development of zygotes into young embryos takes place within the female gametophytes

The plant life cycle alternates between a sporophyte and a gametophyte. Usually, in the sporophyte stage

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