Colour blindness is |
|
a) |
Sex-linked recessive disease |
b) |
Sex-linked dominant disease |
c) |
Autosomal dominant disease |
d) |
Autosomal recessive disease |
Colour blindness is |
|
a) |
Sex-linked recessive disease |
b) |
Sex-linked dominant disease |
c) |
Autosomal dominant disease |
d) |
Autosomal recessive disease |
(a) Colour Blindness (i) It is a sex-linked recessive disorder (ii) It results in defect in either red or and green cone cells of eye resulting in failure to discriminate between red and green colour (iii) The gene for colour blindness is present on X-chromosome (iv) It is observed more in males because of presence of only one X-chromosome as compared to two chromosomes in famales |