Which of the following is an example of sex-linked disease?
$AIDS$
Colour blindness
Syphilis
Gonorrhoea
Both husband and wife have normal vision though their fathers were colourblind and mothers did not have any gene for colour blindness. The probability of their daughter becoming colourblind is
Give scientific reasons : The product of phenylalanine catabolism excreted in the urine in phenylketonuria.
A normal woman whose father was colour blind, is married to a normal man. The sons would be
Describe Mendelian Disorder
If a colour blind female marries a man whose mother was also colour blind, what are the chances of her progeny having colour blindness ?