Punnett Square
KEY:
M- Dominant (normal) trait
m- Recessive (Menkes') trait
ANALYSIS:
Since the child is going to be a boy, he only needs one affected chromosome to have Menkes' disease. The punnett square shows that there is a 50% chance the child will be normal and 50% chance he will have Menkes' disease.
M- Dominant (normal) trait
m- Recessive (Menkes') trait
ANALYSIS:
Since the child is going to be a boy, he only needs one affected chromosome to have Menkes' disease. The punnett square shows that there is a 50% chance the child will be normal and 50% chance he will have Menkes' disease.