Q449
Assertion (A) In humans, female sex is determined by XX-chromosomes. Reason (R) Male sex is determined by XY-chromosomes.
A.
Both A and R are true and R is the correct explanation of A
B.
Both A and R are true, but R is not the correct explanation of A
AnswerC.
A is true, but R is false
D.
A is false, but R is true
Answer: Option B
Solution
Answer: Option B
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