Among the five factors that are known to affect Hardy-Weinberg equilibrium, three factors are gene flow, genetic drift and genetic recombination. What are the other two factors ?

In a certain population, the frequency of three genotypes is as follows

What is the likely frequency of $B$ and $b$ alleles ?

In Hardy-Weinberg principle expression of allele frequency is represented by

Give scientific reasons : Genetic drift is much more likely to change allele frequencies in a small population rather than large population.
 

Which one of the following factor do not allows Hardy-Weinberg principle to operate?