contestada

Hemophilia is a sex-linked trait. If a man and a woman have a hemophilic son, which of the following MUST be true?

a)The father is a carrier

b)The mother is a carrier

c)The boy's grandfather has hemophilia

d)Both parents have the disease allele

Respuesta :

hudgensbrycelyn

Answer:

If Hemophilia is a dominant trait then the mother or father could've passed down that gene. Assuming that Hemophilia is a ressecive gene then both parents must have the ressecive gene and passed it down to their son.

Otras preguntas