alleryIn humans, the sex-determination mechanism is:
AZW type with female heterogamety
BXY type with male heterogamety (males XY, females XX)
CHaplodiploid
DXO type (males XO, females XX)
Answer & Solution
Correct answer: B. XY type with male heterogamety (males XY, females XX)
**Humans (and Drosophila):** **XY type, male heterogamety**.
Males XY produce X- and Y-bearing sperm
females XX produce only X eggs.
So the **father determines the sex** of the offspring.
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