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Standard XII
Biology
Question

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?
  1. Dicots
  2. Angiospermae
  3. Monocots
  4. Pteridophyta

A
Monocots
B
Dicots
C
Angiospermae
D
Pteridophyta
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Solution
Verified by Toppr

This depicts the life cycle of pteridophytes.
So the correct option is D.

1334482_408331_ans_9aae4176d2054f57b88da7ac8487440c.jpg

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Similar Questions
Q1
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?
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Q2
Assertion :The zygote developed from sexual reproduction is diploid. Reason: In sexual reproduction, haploid gametes fuse and form zygote.
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Q3
A: The haploid plant body (gametophyte) produces gametes by mitosis
R: Diploid sporophytic plant body produces spores by meiosis
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Q4
Zygote of an organism developed after syngamy undergoes meiosis to form haploid spores, which divide mitotically and form the gametophyte. The organism must have ________ life cycle.
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Q5
Rearrange the following events starting from the formation of the zygote in Marchantia :
I. Formation of sporophyte
II. Spore germination
III. Formation of gametophyte
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V. Reductional division
VI. Formation of spores
VII. Syngamy

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