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Science · 2025 · 3 marks
CBSE 2025 · Region 5 · Set 2 · Q32
Differentiate between a gamete and a zygote. State their significance in sexual reproduction.
Differentiate between a gamete and a zygote. State their significance in sexual reproduction.
Marking-scheme solution
| Gamete | Zygote |
| (i) Germ cells/sex cells | (i) Formed by fusion of male and female gamete |
| (ii) They have half the number of chromosome (one set) and half the amount of the DNA as compared to non-reproductive cells /Haploid(n) | (ii) They have $\displaystyle 2$ set of chromosomes. / Diploid(2n) |
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