Same chapter3 marksDifficulty: Medium
State three characteristics of bryophytes and name one example.
Plant Kingdom
3 marksDifficulty: Medium
What is alternation of generations, and how does it differ between a moss and a fern?
Original Khojo Papers practice question — not from a past board paper.
Answer
Alternation of generations is the alternation of a haploid gametophyte with a diploid sporophyte in the life cycle of a plant. In a moss the gametophyte is dominant, green and independent while the sporophyte is small and dependent on it. In a fern the sporophyte is the dominant, independent plant and the gametophyte is a small, short-lived prothallus.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The trend across the plant kingdom is towards a dominant sporophyte.
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