Question

The phenotypic determination by genetic variation in a population refers to the degree of

• A. Fitness
• B. Heritability
• C. Limited environmental resources
• D. Overproduction of offspring
• E. Phenotypic variation

Answer 1

The correct option is B Heritability

The observed phenotypic variations of a trait in a population which is caused by genetic variation are called as heritability. It shows the extent to which a trait is determined genetically. Fitness refers to the ability of survival and production of fertile offspring. Limited environmental resources lead to the struggle for existence, not phenotypic variations. Overproduction of offspring represents the biotic potential of species.

Therefore, the correct answer is option B.