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RPF Constable (Executive) 2025 · Question 1004 of 1580

In the context of inheritance of sex chromosomes in humans, which of the following statements is correct?

Statement & Conclusion

  1. AAll children inherit a Y chromosome from their mother, and the sex is determined by the chromosome inherited from their father.
  2. BAll children inherit an X chromosome from their mother, and the sex is determined by the chromosome inherited from their father.Correct
  3. CAll children inherit a Y chromosome from their father, and the sex is determined by the chromosome inherited from their mother.
  4. DAll children inherit an X chromosome from their father, and the sex is determined by the chromosome inherited from their mother.

Answer: B. All children inherit an X chromosome from their mother, and the sex is determined by the chromosome inherited from their father.

Official answer key verified. Detailed explanation coming soon.

Source: RPF Constable 2025 Question Paper All Shifts English (aglasem compilation of official response sheets, e) · official-answer-key

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