Alternation of Generation in Different Divisions of Plants
Bryophytes an...
Question
Bryophytes and pteridophytes exhibit _______ life cycle.
A
diplontic
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B
haplontic
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C
haplo-diplontic
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D
triplontic
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Solution
The correct option is Chaplo-diplontic Bryophytes and pteridophytes show haplo-diplontic life cycle where both the haploid and the diploid phases are multicellular.
In bryophytes the haploid gametophyte is dominant and alternates with a short-lived sporophytic phase which is totally or partially dependent on the gametophyte.
In pteridophytes the sporophytic phase is dominant and alternates with a short-lived and independent gametophytic phase.