1) Factors that will not produce any change in Hardy-Weinberg equilibrium a) directional selection b) stabilizing selection c)balanced polymorphism d)distributive selection\random mating

2) In an increased industrial polluted ares,dark coloured moth appear among the light one .It is an example of a)genetic drift b) mutations c) selection-direction based d) Random matings

Q. Assertion: Hardy-Weinberg principle states that in the absence of disturbing influences, gene frequencies of large populations of sexually reproducing organisms do not change, provided that matings, occur at random.

Reason: The disturbing influences include mutation, gene flow, genetic drift, genetic recombination and natural selection.

Q. Appearance of dark-coloured peppered moths among the light coloured ones as a result of increased industrial pollution is an example of:

Q. Which of the following factors can change allelic frequency?
A. Gene flow
B. Natural selection
C. Random mating
D. Founder effect
E. Genetic recombination

Q. Read the following statements and select the correct option.
(i) Increase in melanised moths after industrialisation in Great Britain is a proof for natural selection.
(ii) When more individuals of a population acquire a mean character value, it is called disruption
(iii) Changes in allelic frequency in a population will lead to Hardy-Weinberg equilibrium.
(iv) Genetic drift changes the existing gene or allelic frequency in future generations.

Q. Hardy-Weinberg equilibrium is influenced by gene flow, genetic drift, mutation, genetic recombination and