A sex-linked character cannot be passed on directly from

Explanation

Usually sex-linked traits are on the X chromosome, since it is so much bigger than the Y chromosome. Most of the sex-linked genetic problems would be found due to mutations in the X chromosome. Since the father can only donate the X chromosome to the daughter and not the son. Therefore, usually the sex linked traits are passed from father to daughter. The mother can also pass on the X chromosome to son and her daughter. If a sex-linked trait is found on X chromosome, the son will definitely get it since the father donates the Y chromosome to the son. The daughter may get the sex-linked trait depending on the type of the gene i.e. whether it's dominant or recessive. If the gene is dominant, just one X chromosome is enough for the daughter to express that trait. If recessive, the daughter needs both X chromosomes to express that trait.