Sex Determination I.

Duration: 1070

Genre: Educational

Year Published: 1960

Creator: Calvin Co.

Format: 16mm

Color: B&W

Sound: sound

Description: X: TMB: Transitional mattes--B-Roll AC: Acetate B: 800' 16/8/9.5mm 16mm Black & White Sound 1070 Calvin Productions, Inc. McGraw-Hill Text Films, Discusses the role of heredity and environment in determining the sex of various organisms. Indicates that in some organisms it is the environment in which a given genotype functions that determines whether differentiation shall occur as male or as female. This is exemplified by sex determination in certain snails, mosses, and worms. Portrays a difference in genetic constitution as primarily responsible for sex determination in other organisms as for a unicellular plant (Chlamydomanas), certain grasshoppers, Drosophila, man, and the mouse. Discusses the genetic basis for sex mosaics (gynandromorphs) and indicates the influences of the "y" chromosome in determining sex in man. Lecture by Dr. C. Stern., Discusses the role of heredity and environment in determining the sex of various organisms. Indicates that in some organisms it is the environment in which a given genotype functions that determines whether differentiation shall occur as male or as female. This is exemplified by sex determination in certain snails, mosses, and worms. Portrays a difference in genetic constitution as primarily responsible for sex determination in other organisms as for a unicellular plant (Chlamydomanas), certain grasshoppers, Drosophila, man, and the mouse. Discusses the genetic basis for sex mosaics (gynandromorphs) and indicates the influences of the "y" chromosome in determining sex in man. Lecture by Dr. C. Stern.

Complete Record: Sex Determination I. Calvin Co. 29 Min., Sd., B&W, 16 Mm. © Calvin Co.; 29apr60 (In Notice: 1959); Mp10667. , , NOTE: Two (or more) records have been merged together to create this data.