A man whose father was colour blind marries a woman who had a colour blind mother and normal father. What percentage of male children of this couple will be colour blind?
$0.25$
$0$
$0.5$
$0.75$
A colour blind man marries the daughter of a colour blind person. Then in their progeny
Mention any two autosomal genetic disorders with their symptoms.
Colourblindness is caused due to
Gene for colourblindness is located on
Genes for colour blindness is carried by
$I.$ Abnormal development
$II.$ Father
$III.$ Mother
$IV.$ Autosomes