If a man has an X-linked recessive disorder, he will transmit the mutant allele to all sons, but to no daughters.Group of answer choicesTrueFalse
Question
If a man has an X-linked recessive disorder, he will transmit the mutant allele to all sons, but to no daughters.
Group of answer choices
- True
- False
Solution
Answer
This statement is True.
Explanation
In humans, the X chromosome carries genes that can be involved in various traits and disorders, including some that are X-linked recessive. Since males have one X chromosome and one Y chromosome (XY), any X-linked trait they possess will be passed on to their daughters, who inherit their father's X chromosome, but not to their sons, who inherit their father's Y chromosome.
Therefore, a man with an X-linked recessive disorder will transmit the mutant allele (contained in his X chromosome) to all of his daughters, but none to his sons, as sons inherit their Y chromosome from their father. Thus, the correct answer to the statement is True.
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