A)Principle of variation: Offspring must resemble their parents more than they resemble unrelated individuals.
B)Principle of selection: Variation in morphology,physiology,and behavior must be present in a population for selection to occur.
C)Principle of variation: Variation in morphology,physiology,and behavior must be present in a population for selection to occur.
D)Principle of heredity: Some genotypes of a population should be more successful at surviving and reproducing than other genotypes in a given environment.
E)None of the answer options are correct.

A)Nonsynonymous mutations will become established less frequently.
B)Adenine nucleotides are more readily mutated than other nucleotides.
C)Synonymous mutations will become established less frequently.
D)Nucleotide changes over time are impossible to measure.
E)Only noncoding sequences display change.

A)a situation where the selective pressure enhances the frequency of heterozygotes over homozygotes.
B)a situation where the selective pressure enhances the frequency of homozygotes over heterozygotes.
C)only situations where disease impacts allele frequency.
D)situations where allelic homozygosity is impossible.
E)All of the answer options are correct.