(a) Explain briefly how the process of meiotic division contributes to variation in a population (b) State Mendel's first and second laws of inheritance. (c...

(a) Explain briefly how the process of meiotic division contributes to variation in a population

(b) State Mendel's first and second laws of inheritance.

(c) A pure breeding brown coloured rat BB was crossed with a pure breeding white rat bb. By means of diagram only, show the genotypes of the offspring up to the second filial generation.