Which one is the incorrect statement with regard to the importance of pedigree analysis?
It confirms that $DNA$ is the carrier of genetic information.
It helps to understand whether the trait in question is dominant or recessive.
It confirms that the trait is linked to one of the autosome.
It helps to trace the inheritance of a specific trait.
If a man who is colour blind marries a women, who is pure normal for colour vision, the chances of their sons have colour blindness is
$A$ - Sickle-cell anaemia is sex linked recessive trait
$R$ - This disease is controlled by more that two pair of alleles
Which of the following is not $X$-linked recessive