Colour blindness is caused by a single
Dominant gene in woman
Dominant gene in man
Recessive gene in man
Recessive gene in woman
Genes for colour blindness is carried by
$I.$ Abnormal development
$II.$ Father
$III.$ Mother
$IV.$ Autosomes
Colour blindness is a disease usually affecting man but the factor for it is transmitted to the children always by woman. This is because particular factor is located on
If a colour blind female marries a man whose mother was also colour blind, what are the chances of her progeny having colour blindness ?
A normal woman whose father was colourblind marries a normal man. What kinds of children would be expected and in what proportion