1
In ferns, meiosis takes place at the time of
- spore formation
- spore germination
- gamete formation
- antheridia and archegonia formation
Answer
(1) spore formation
Solution
As per NCERT, the main plant body of a pteridophyte (fern) is the diploid sporophyte.
⇒ The sporangia bear spore mother cells (2n), which undergo meiosis to form haploid spores.
∵ Spores germinate by mitosis into the haploid prothallus, and gametes are formed by mitosis in the haploid antheridia and archegonia.
∴ In ferns, meiosis takes place at the time of spore formation.
Answer: (1)
AIPMT 2000