Assertion (A): Assertion (A): Sex determination in humans is based on the presence or absence of the Y chromosome. Reason (R): Reason (R): Individuals with XY genotype are males, and those with XX genotype are females.
- ABoth A and R are true and R is the correct explanation of A
- BBoth A and R are true but R is NOT the correct explanation of A
- CA is true but R is false
- DA is false but R is true
✓ Correct answer: A
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