In a species, the weight of newborn ranges from $2$ to $5\; \mathrm{kg} .97 \%$ of the newbom with an average weight between $3$ to $3.3\; \mathrm{kg}$ survive whereas $99 \%$ of the infants born with weights from $2$ to $2.5\; \mathrm{kg}$ or $4.5$ to $5 \;kg$ die. Which type of selection process is taking place?

A gene locus has two alleles $A,$ a. If the frequency of dominant allele $A$ is $0.4$ then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?

''Migration may enhance or blurr the effects of selection''. Comment.

Name the law that states that the sum of allelic frequencies in a population remains constant. What are the five factors that influence these values ?

The chance of elimination of genes from a small population is an example of

According to 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 were 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 for a population to reach Hardy-Weinberg Equilibrium?