If a colour blind woman marries a normal visioned man, their sons will be
all colour blind
all normal visioned
onehalf colour blind and onehalf normal
threefourths colour blind and onefourth normal.
Colour blindness results from
A normal woman, whose father was colour-blind is married to a normal man. The sons would be
Haemophilia is example of
The female children of a haemophilic man and a carrier woman are likely to be
Which one of the following symbols and its representation, used in human pedigree analysis is correct?