Which of the Following is Not Required for a Behavioural

Question

Which of the following is not required for a behavioural trait to evolve by natural selection?
A)In each individual, the form of the behaviour is determined entirely by genes.
B)The behaviour varies among individuals.
C)An individual's reproductive success depends in part on how the behaviour is performed.
D)Some component of the behaviour is genetically inherited.
E)An individual's genotype influences its behavioural phenotype.

Accepted Answer

For a behavioural trait to evolve by natural selection, it is not necessary for the form of the behaviour to be determined entirely by genes in each individual. Many behavioural traits are influenced by both genetic and environmental factors. The other options (B, C, D, and E) are all necessary for natural selection to act on behavioural traits.