Praxis 5005 Practice Question
Which of the following is a true statement about an X-linked trait?
Correct Answer: C
Rationale: In X-linked inheritance, genes are located on the X chromosome. A father has one X and one Y chromosome, while a mother has two X chromosomes.
Option C is accurate; a father can pass his X chromosome (carrying the trait) to his daughters, but not to his sons, who receive his Y chromosome.
Option A is incorrect; a mother can indeed pass the trait to both her daughters and sons, as both inherit one of her X chromosomes.
Option B is also false; a mother can pass the trait to her sons.
Option D is misleading; a father cannot pass the X-linked trait to his sons, as they inherit his Y chromosome instead.
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