The gene for color blindness is located on the .....

If a color-blind woman marries a normal man,their offspring will be:

$A$ normal woman whose father was albino marries a man who is albino. What proportion of normal and albino can be expected among their offspring?

Sickle cell anemia and Huntington's chorea are both ..........

$A$ woman is a carrier for hemophilia (having one gene on each $X$ chromosome) and also carries one gene for color blindness on one $X$ chromosome. She marries a normal man. What will be the phenotype of their offspring?

Which of the following most appropriately describes haemophilia?