Biology for IGCSE & O level - Inheritance (Section 4 - No. 50)
What is the role of the Y chromosome in sex determination in humans?
Determines femaleness.
Contains genes for many traits.
Triggers the development of testes.
Carries the genes for color vision.
Explanation
The Y chromosome contains the SRY gene, which triggers the development of testes and, consequently, maleness.
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