(b) P generation P generation Precocious Normal Normal Normal puberty ở Pp puberty ? pp puberty ? Pp puberty d pp Meiosis Meiosis P P Gametes (P P Gametes Fertilization Fertilization Half of the sons and Half of the sons and F, generation none of the daughters have precocious puberty. F, generation none of the daughters have precocious puberty. ½ Pp precocious puberty 2 Pp normal puberty ½ Pp precocious puberty ½ Pp normal puberty 2 pp normal puberty 2 pp normal puberty 2 pp normal puberty 2 pp normal puberty Conclusion: Both males and females can transmit this sex-limited trait, but it is expressed only in males.

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Q: chromosomes

A:

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