Blood Groups, Skin Color, and Gene Pools

Duration: 33

Genre: Educational

Creator: CRM/McGraw-Hill Films

Format: 16mm

Color: Color

Sound: sound

Description: Explains alleles and the heredity aspects of differing geneotypic combinations in human blood groups and skin color. While defining population genetics, shows how gene pools in the South American Indian and the white American differ. Diagrams the genetic make-up of a mulatto and its offspring, stressing that here the genes act additively (polygenic inheritance). Emphasizes the part played by chance in inheritance. Uses polygenic inheritance in relation to human stature to show continuous variation in heredity. Pictures the production and explains the genetics of hybrid corn., Explains alleles and the heredity aspects of differing genotypic combinations in human blood groups and skin color. Defines population genetics and emphasizes the part played by chance in inheritance.

Complete Record: Explains alleles and the heredity aspects of differing geneotypic combinations in human blood groups and skin color. While defining population genetics, shows how gene pools in the South American Indian and the white American differ. Diagrams the genetic make-up of a mulatto and its offspring, stressing that here the genes act additively (polygenic inheritance). Emphasizes the part played by chance in inheritance. Uses polygenic inheritance in relation to human stature to show continuous variation in heredity. Pictures the production and explains the genetics of hybrid corn., Explains alleles and the heredity aspects of differing genotypic combinations in human blood groups and skin color. Defines population genetics and emphasizes the part played by chance in inheritance.NOTE: Two (or more) records have been merged together to create this data.