Which statement about inheritance is true?

Human egg cells carry an X chromosome, while sperm cells carry either an X or a Y chromosome. Therefore, the father’s sperm determines whether the offspring typically has XX chromosomes (female) or XY chromosomes (male), making “Fathers always determine the gender of the offspring in humans” the correct choice. A carrier mother does not pass an X-linked disease to every son; each son has a chance of inheriting the affected X chromosome.

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