In Pteridophytes/ Dryopteris meiosis occurs at the time of [MP PMT 1986; CBSE PMT 2000; Wardha 2001; AMU 1989; JIPMER 1997; AIIMS 1998]
A) Gamete formation
B) Spore formation
C) Formation of prothallus
D) Formation of sex organs
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( A) gamete formation
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Answer:
The correct answer is A) Gamete formation.
Explanation:
In the 'Pteridophytes/ Dryopteris', meiosis occurs at the time of Gamete formation.
Pteridophytes consists of ferns that are mainly free 'sporing vascular plants'. The life cycle of these plants consists of alternating, free-living gametophyte and sporophyte phases which become independent while they mature.
During sexual reproduction, at the time of gamete formation, meiosis occurs that causes the division and distribution of the genes of the plant in the future offspring.
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