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The Concept of Gene Flow Indicates That Evolution of Populations

question 40

Essay

The concept of gene flow indicates that evolution of populations can occur when individuals enter or leave a population. The addition of new alleles into the population makes it easy to visualize changes to phenotypes. Explain how emigration can lead to evolutionary change.


Definitions:

Ego

In psychoanalytic theory, the part of the personality that mediates between the demands of the id, superego, and reality.

Phallic

Pertains to the third stage in Freud's psychosexual development theory, focusing on the pleasure center around the genital area during the ages of 3 to 6 years.

Anal Character

A term from psychoanalytic theory referring to a personality type resulting from a fixation at the anal stage of development, characterized by orderliness, stubbornness, and a focus on control.

Oral Character

A personality type in psychoanalytic theory associated with issues in the oral stage of development, such as dependency.

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