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Question

Statement 1: The main plant body of bryophytes is sporophytic.


Statement 2: The main plant body of pteridophytes is gametophytic.

A
Both statements 1 and 2 are correct.
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B
Statement 1 is correct but statement 2 is incorrect.
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C
Statement 1 is incorrect but statement 2 is correct.
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D
Both statements 1 and 2 are incorrect.
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Solution

The correct option is D Both statements 1 and 2 are incorrect.
The main plant body in Bryophytes is the independent , photosynthetic gametophyte, the diploid body or the sporophyte is partially dependent on the sporophyte, that then give rise to haploid spores which on germination produce the gemetophyte (Riccia) or protonema (Funaria). The plants have a haplo-diplontic type of life cycle.
The main plant body in Pteridophytes is diploid, independent, photosynthetic differentiated into root,stem and leaves. It produces reproductive structures the Sori (Adiantum) or Strobilus (Equisetum) that give rise to haploid spores, the haploid spores produce heart shaped independent gametophyte the prothallus, containing the male and female reproductive structures. The plants have a diplo-haplontic type of life cycle.
So, the correct answer is 'Both statements 1 and 2 are incorrect.'


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