MCQ
Heterogametic male condition does not occur in?
- ABirds
- BHumans
- CHoney bee
- DBoth B and C
✓
Answer
- Birds
Explanation:
In birds, the ZW sex determination is followed. Here, the females are heterogametic sex (ZW) while the males are homogametic sex (ZZ).
On the other hand, humans have XY system of sex determination where males are heterogametic (XY) while females are homogametic (XX).
In honey bee, the sex is determined by the fertilisation or non-fertilization of eggs, i.e., by haplodiploidy wherein the males develop from unfertilized eggs and are haploid in nature and the females develop from fertilised eggs and are diploid in nature.
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