Which of the following statements are true of sex-linked inheritance? (Read carefully and select all of the correct statements.)
A)The Y chromosome has more genes than does the X chromosome,and they are all dominant.
B)A woman with one gene for a sex-linked trait is a carrier of the trait.
C)The dominant gene on the Y chromosome is expressed when the corresponding gene on the X chromosome is missing.
D)The dominant gene on the Y chromosome is expressed when the corresponding gene on the X chromosome is recessive.
E)Men can be carriers only if the gene for the trait on the Y chromosome is recessivE.
F)A daughter acquires a sex-linked trait from both parents,but a son acquires such a trait only from his mother.

Question

Quizplus · Accepted Answer

A) The Y chromosome actually has fewer genes than the X chromosome, and they are not all dominant.
B) This statement is true. Since women have two X chromosomes, they can carry a recessive gene on one X chromosome and not express the trait.
C) The Y chromosome does not have a corresponding gene for every gene on the X chromosome, so this statement is false.
D) Same as C, this statement is false.
E) This statement is also false. Men cannot be carriers of a sex-linked trait because they only have one X chromosome.
F) Daughters inherit one X chromosome from each parent, so they can inherit a sex-linked trait from both. Sons inherit one X chromosome from their mother and one Y chromosome from their father, so they can only inherit a sex-linked trait from their mother.

Which of the Following Statements Are True of Sex-Linked Inheritance