Which of the following is a genetic disease
Phenylketonuria
Blindness
Cataract
Leprosy
Pick out the correct statements.
$I.$ Haemophilia is a sex-linked recessive disease
$II.$ Down's syndrome is due to aneuploidy
$III.$ Phenylketonuria is an autosomal dominant gene disorder
$IV.$ Phenylketonuria is an autosomal recessive gene disorder
$V.$ Sickle cell anaemia is an $X$-linked recessive gene disorder
If both parents are carriers for thalassemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child?
A normal woman, whose father was colour-blind is married to a normal man. The sons would be
Sicklecell anaemia is
Colour blindness in man is