Examlex
Extinction and generalization do not appear in operant conditioning.
Introgression
The transfer of genetic material from one species to another through hybridization and backcrossing, leading to the incorporation of foreign genes into a population.
Synonymous Substitution Rate
The rate at which point mutations occur in a DNA sequence that do not alter the encoded amino acid due to the redundancy of the genetic code.
Purifying Selection
Removes deleterious alleles from a population. It is a common form of stabilizing selection.
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