Q. Blue eye colour is recessive to brown eye colour. | A brown eyed man whose mother was blue eyed marries a blue-eyed women. The children will be

 3140  188 AIPMTAIPMT 1991Principles of Inheritance and Variation Report Error

Solution:

Blue eye colour is recessive to brown eye colour. A brown eyed man whose mother was blue eyed j marries a blue eyed women. The children shall be both blue eyed and brown eyed 1:1. The brown eyed man will have the genotype Bb and his wife bb. Hence Bb x bb = Bb : bb. Hence, the ratio is 1 : 1.