Explain the genetic basis of blood grouping in human population.

(a) A couple with blood groups 'A' and 'B' respectively have a child with blood group 'O'. Wrok out a cross to show how it is possible and the probable blood groups that can be expected in their other off-springs. (b) Explain the genetic basis of blood groups in human population.

The four blood groups in humans are

Human population shows

ABO blood grouping in humans in an example of

Choose the correct option with respect to the genetic makeup of the ABO blood grouping system in humans.

The growth of human population shows

Explain codominance taking an example of human blood groups in the population.

a) Differentiate between dominance and co-dominance. b) Explain co-dominance taking an exmaple of human blood groups in the population.

How many phenotypic classes are found for human blood group in population ?

According to the ABO system , the commonest blood group in the human population is (X) while the rarest blood group is (Y) . If the wife has (X) blood group and the husband has (Y) blood group , their children will have which of the following blood groups ?