What is the sum total of all genes present in a population called?

Define gene pool.

$A$ population is in Hardy-Weinberg equilibrium for a gene with only two alleles. If the gene frequency of an allele $A$ is $0.7$,the genotype frequency of $Aa$ is

According to the Hardy-Weinberg principle,allele and genotype frequencies in a population will remain constant from generation to generation in the absence of other evolutionary influences. It makes several assumptions which are given below:
$i.$ Random Mating
$ii.$ Sexual Reproduction
$iii.$ Non-overlapping Generations
$iv.$ Occurrence of Natural Selection
$v.$ Small size of population
Identify two assumptions which do not meet the criteria for a population to reach Hardy-Weinberg Equilibrium.

Which of the following is the correct formula for the Hardy-Weinberg principle?

The Hardy-Weinberg principle cannot operate if