Exercises · Q5
Q.How does the progeny formed from asexual reproduction differ from those formed by sexual reproduction?
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Start your 14-day free trial to unlock the full solution →The two modes of reproduction differ fundamentally in the kind of progeny they produce:
Progeny from asexual reproduction
- Arise from a single parent only.
- Produced by mitotic division — no gametes, no meiosis, no fertilisation involved.
- Are genetically identical to the parent and to one another (a clone).
- Show no genetic variation, other than rare mutations.
- Tend to be produced rapidly and in large numbers (e.g., budding, fragmentation, spore formation, vegetative propagation).
Progeny from sexual reproduction
- Arise from two gametes (typically from two parents, or from male and female gametes produced within the same individual in bisexual organisms).
- Involve meiosis during gamete formation, which introduces variation through crossing over and independent assortment of chromosomes.
- Involve fertilisation — fusion of a haploid male gamete and a haploid female gamete to restore the diploid (2n) zygote.
- Are genetically variable — each offspring has a unique combination of genes different from both parents and from its siblings.
- The process is generally slower and more resource-intensive, and typically produces fewer offspring per reproductive event compared to asexual reproduction. …
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