Hardy-Weinberg Equilibrium

In a habitat, a population of 1000 individuals consists of:

• 360 with genotype AA
• 480 with genotype Aa
• 160 with genotype aa

After many years, the new population of 2000 individuals consists of:

• 1000 with genotype AA
• 680 with genotype Aa
• The remaining with genotype aa

Which of the following statements are correct about this population?

1. Stabilising selection takes place in this habitat
2. More extent of evolutionary changes takes place
3. Hardy–Weinberg equilibrium is not maintained
4. Hardy–Weinberg equilibrium is maintained

Options:

1. a, d
2. a, b
3. b, c
4. b