Twins, Nature and Nurture

Duration: 33

Year Published: 1959

Creator: University Film Producers Assn

Format: 16mm

Color: B&W

Description: Discusses the opportunities provided by twins for determining the relative contribution of nature (heredity) and nurture (environment) in the production of traits. Reviews the embryological basis for and presents means of identification of monozygotic and dizygotic twins. Discusses the nature-nurture basis of a number of physical and mental traits, including test intelligence, using concordance-discordance values and other methods of analysis. Lecture by Dr. C. Stern.

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