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?
Directional Selection
Stabilizing Selection
Disruptive Selection
Cyclical Selection
Which is basis of evolution
''Migration may enhance or blurr the effects of selection''. Comment.
Genetic drift operates in
Hardy-Weinberg equilibrium is not affected by which of the following factors?