Zoology - Principles of Inheritance and Variation Question with Solution | TestHub

Genotype of Male is${\mathrm{X}}_{\mathrm{c}}\mathrm{Y}$and Genotype of Female is${\mathrm{X}}_{\mathrm{h}}\mathrm{X}$.

The genotypes of their children will be

Their children${\mathrm{X}}_{\mathrm{c}}\mathrm{X}$(daughter carrier for colourblindness),

${\mathrm{X}}_{\mathrm{c}}{\mathrm{X}}_{\mathrm{h}}$(daughter carrier for colourblindness and haemophilia), XY (normal son),${\mathrm{X}}_{\mathrm{h}}\mathrm{Y}$(haemophiliac son)

Thus, 25% of their children will carry the genes for both haemophilia and colour-blindness${\mathrm{X}}_{\mathrm{c}}{\mathrm{X}}_{\mathrm{h,}}$25% of their children will carry the gene only for haemophilia${\mathrm{X}}_{\mathrm{h}}\mathrm{Y\; and }$25% of the progenies carry only the gene for colour-blindness${\mathrm{X}}_{\mathrm{c}}\mathrm{X}$