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Byju's Answer
Standard XII
Biology
Alternation of Generation
Plants that p...
Question
Plants that produce embryo and spores but lack seed and vascular tissue belong to
A
Angiosperms
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B
Bryophyte
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C
Gymnosperms
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D
Pteridophytes
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Solution
The correct option is
B
Bryophyte
Bryophyte
Bryophytes have a gametophytic plant body (haploid) which forms the haploid gametes through mitosis.
The male and female gametes fuse to form a diploid zygote that develops into an embryo which eventually forms a multicellular diploid sporophyte.
The bryophytes do not bear seeds.
Some sporophyte cells undergo reduction division to form haploid spores.
These spores on germination form new gametophytic organisms.
Bryophytes do not have a vascular system developed in them and they lack true roots, stems and leaves.
Final answer:
(a) Bryophytes
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Alternation of Generation
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