Pattern baldness, moustaches and beard in human males are examples of
Sex-determining traits
Sex linked traits
Sex limited traits
Sex differentiating traits
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
If a father and son are both defective in red-green colour vision, is it likely that the son inherited the trait from his father ? Comment.
$A$ : The posssibility of a female becoming a haemophilic is extremely rare.
$R$ : Mother of such a female has to be carrier and father should be haemophilic
Following pedigree chart shows
In the given pedigree, indicate whether the shaded symbols indicate dominant or recessive allele.