A brown mouse is mated with a white mouse. All of their offsprings are brown. If two of these brown offsprings are mated, what fraction of their offspring will be white?

A black mouse mates with a brown mouse, and all the offsprings are back. (a) Why are no brown offsprings produced ? (b) If two of the black offpsrings mate with each other what kind of offspring would you expect and in what proportions ? Give reason for your answer.

What is the reason for the variations in offsprings?

RR (red) is crossed with ww (white). All Rw offsprings are pink. This indicates that R-gene is

The offspring of mating between two pure breeding strains called

The offsprings of mating between two pure strains are called as:

Tt mates with tt. What will be characteristic of offsprings?