Question

select all that apply
the theory of evolution of natural selection requires which of the following conditions be met?
genetic variation must lead to differences in reproductive success.
genetic variation must occur in an environment that is not changing.
genetic variation must be transmissible to the next generation.
genetic variation must exist in the population.
genetic variation must not alter the frequencies of alleles in the gene pool.

Explanation:

• Genetic variation must lead to differences in reproductive success: This is a key aspect of natural selection. Traits that give an advantage in reproduction (more offspring) will be favored.
• Genetic variation must be transmissible to the next generation: If variations are not passed on, natural selection (which acts on heritable traits) cannot occur.
• Genetic variation must exist in the population: Without variation, there is nothing for natural selection to act upon.

• Genetic variation must occur in an environment that is not changing: This is incorrect. Natural selection occurs in changing environments. Organisms with traits suitable for the new environment are selected.
• Genetic variation must not alter the frequencies of alleles in the gene pool: This is incorrect. Natural selection does alter allele frequencies in the gene pool over time.

Answer:

• Genetic variation must lead to differences in reproductive success.
• Genetic variation must be transmissible to the next generation.
• Genetic variation must exist in the population.