Question

Which process of inheritance is in violation of Hardy-Weinberg law?

• A. Lamarckian process of inheritance
• B. H.J. Muller's concept
• C. Sewal Wright effect
• D. G.L. Stebbin's concept

Answer 1

Answer: (C)

Sewal Wright effect

• The Hardy-Weinberg law states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of evolutionary influences likes mutation, selection, genetic drift, gene flow.
• Genetic drift is also known as Sewall Wright effect. It deals with the fluctuation in the gene frequency in a small population.
• Smaller the population, larger will be the fluctuation in gene frequency considering the population to be a random non-mating one.
• The fluctuation in the gene frequency takes place purely by chance and it is a major cause of variation.
• So, the correct answer is option C.