Carrier of genes of colour blindness are present in
Father
Mother
Father and mother
None
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.
Choose incorrect statement for haemophilia.
Thalassemia and sickle cell anaemia are caused due to a problem in globin molecule synthesis. Select the correct statement.
$A$ - Sickle-cell anaemia is sex linked recessive trait
$R$ - This disease is controlled by more that two pair of alleles
Mendelian disorder may be of