The pedigree chart below shows the inheritance of a sex- linked trait
Why does the male child II-1 not use the disorder?
A. Male children only inherit the X chromosome form their fathers and the trait is carried on the Y
B. Sex linked traits are always inherited from the mother and the mother does not have the trait.
C. The trait is carried on the X chromosomes and the son inherited his Y from his father.
D. A sex-linked trait always skips the second generation.
