The number of alleles of a recessive character in a population is 300 out of total of 100. Its frequency is
Correct answer: B. 0.3
- A. 0.7
- B. 0.3
- C. 0.5
- D. 0.4
Explanation
A recessive allele is a form of genetic coding that does not produce a phenotype in the presence of a dominant allele. To compute the frequency of recessive alleles, use the Hardy-Weinberg equilibrium equation. The recessive allele's frequency is denoted by q, and it can be computed by taking the square root of q2.
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Evolution describes heritable change in populations over generations through variation, natural selection and adaptation. Lamarckism explains inheritance of acquired characteristics, while Darwinism explains selection of favourable inherited variations; these historical explanations must not be confused with the modern genetic account of evolutionary change.
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