Which of the following is an example of sex-linked disease?
$AIDS$
Colour blindness
Syphilis
Gonorrhoea
One of the genes present exclusively on the $X$-chromosome in humans is concerned with
Describe Mendelian Disorder
Which one is the incorrect statement with regard to the importance of pedigree analysis?
Describe Mendelian Disorder.
One of the following is not true to haemophilia