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Jason and Alex Are Biologically Unrelated Adolescents Who Were Adopted

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Jason and Alex are biologically unrelated adolescents who were adopted as infants and raised together.For which of the following are Jason and Alex least likely to resemble each other any more than they resemble a genetically unrelated adolescent from another home in their neighborhood?


Definitions:

Pre-Mating

Pertains to processes or behaviors that occur before the act of reproduction, often involving mate selection or courtship in animals.

Phylogenetic Species Concept

A method of defining species as the smallest group of individuals that share a common ancestor, forming one branch on the tree of life.

Biological Species Concept

A definition of species as groups of interbreeding natural populations that are reproductively isolated from other such groups.

Populations

Groups of individuals belonging to the same species that live in the same region and interbreed, producing fertile offspring.

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