Explain the following two significances of meiotic cell division —
- Maintains the constant number of chromosomes in a species
- Origin of variation in an organism
WBBSE
Class X
Life Science
02 (a) Cell Division and Cell Cycle
02 Mark
2022
Meiotic cell division halves the chromosome number in gametes, so that when fertilization occurs, the species-specific chromosome number is restored, maintaining chromosome constancy across generations.
Meiotic processes like crossing over and independent assortment produce genetic variation by creating new combinations of genes, essential for evolution and adaptation.
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