Biology Past Questions and Answers

A man's blood group is AB. What is the probability of the man giving birth to a child with blood group O?

When a man who is Rh-positive marries a woman who is Rh-negative, there will be incidence of

The gene that is only located on X-choromosome is said to be

If a boy has blood type O and his mother has blood type A,what is the genotype of his father?

A man's who suffers from haemophilia marries a woman who is a carrier, what percentage of their children are likely to be haemophilie?