If all the members of a population are homozygous for the same allele then that allele is
Correct answer: C. Fixed
- A. Variable
- B. Abnormal
- C. Fixed
- D. Normal
Explanation
Individuals can be homozygous or heterozygous for these homologous loci. - If all members of a population are homozygous for the same allele, that allele is said to be fixed.
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About Evolution
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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