Given is : $X$ is the chromosome with gene for haemophilia and $X$ is the chromosome with normal gene. Which of the following individuals will act as carrier for haemophilia
$X^hY$
$X Y$
$X^hX^h$
$X^hX$
One way of detecting sex linked inheritance is
A woman with normal vision, but whose father was colour blind, marries a colour blind man. Suppose that the fourth child of this couple was a boy. Thus boy
The pedigree chart given below shows a particular trait which is absent in parents but present in the next generation irrespective of sexes. Draw your conclusion on the basis of the pedigree.
Describe pedigree analysis and draw its symbols.
Colour blindness is caused by a single