Sex-linked genetically inherited traits:

1.   ?    can appear in both males and females
2.   ?    are only found in males
3.   ?    are only found in females
4.   ?    result from premarital sexual intercourse

Y-linked traits are inherited:

1.   ?    only by females
2.   ?    only by males
3.   ?    by both males and females

Harmful X-linked traits are:

1.   ?    inherited only from mothers
2.   ?    more numerous than Y-linked ones
3.   ?    most likely to show up in the phenotype of daughters

Red-green color blindness is:

1.   ?    an X-linked trait
2.   ?    a Y-linked trait
3.   ?    both X and Y linked

Men with red-green color blindness inherited the genes for it from:

1.   ?    their mothers
2.   ?    their fathers
3.   ?    either their mothers or fathers

Parents of a color blind female could have the genotypes

1.   ?    XCXc and XCY
2.   ?    XcXc and XCY
3.   ?    XCXc and XcY
4.   ?    XCXC and XcY

Sex-linked traits appear more often in males than in females because

1.   ?    males are produced in greater numbers
2.   ?    females with a sex-linked trait will die
3.   ?    males have only one X chromosome
4.   ?    sex-linked traits are carried on the Y chromosome

A woman who is a carrier for hemophilia can expect what percentage of her sons to have the disease?

1.   ?    1/4
2.   ?    1/2
3.   ?    3/4
4.   ?    4/4 (ALL)