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Heredity

Author(s):
Strandskov, H H
Encyclopaedia Britannica Films Inc
Title(s):
Heredity / produced by Encyclopaedia Britannica Films Inc., in collaboration with H.H. Strandskov.
Series:
Biological sciences series
Country of Publication:
United States
Publisher:
[Chicago, IL] : Encyclopaedia Britannica Films, c1939.
Description:
Master positive : 1 film reel of 1 (369 ft.) : sd., b&w ; 16 mm.
Language:
English
Electronic Links:
http://resource.nlm.nih.gov/9200594A
Summary:
The mode of transmission of hereditary materials which are responsible for the inherited characteristics of all plants and animals is presented. Live action and animation are used to demonstrate what happens when the egg and sperm of red-coated and white-coated cattle meet to form the zygote and when mitosis occurs. Over animation superimposed on live shots of the resulting roan calf, the narrator explains how both sets of genes influence the color of this animal. The effects of mating two roan animals are then similarly explained. In this case 1/4 of the calves will be red, 1/2 of them roan, and 1/4 of them white. Guinea pig crosses produce slightly different results. Over shots of black and white guinea pigs, animation and animation superimposed on live shots, black dominance in these animals is explained. Rough-coated dominance in guinea pigs is similarly explained, as is black or white combined with rough or smooth dominance.
MeSH:
Genetics*
Publication Type(s):
Animation
Instructional Film and Video
Notes:
Country of Producing Entity: United States.
Last inspected: Answer print: 199006. Condition complete; .3% shrinkage/scratched.
Last inspected: Duplicate negative: 199103. Condition complete; good.
With film guide.
Copyright and all rights of reproduction, including television, reserved.
MP14207.
Also available online.
Videocassette (Betacam SP) 1 videocassette (11 min.) : sd., b&w ; 1/2 in.
Videodisc (DVD) 1 videodisc (11 min.) : sd., b&w ; 4 3/4 in.
Copyright Status:
This item may be under copyright protection. Please ask copyright owner for permission before publishing.
Copyright Holder:
Encyclopedia Britannica Films Research date: 11/03/2011 Source: Item.
Other ID:
(OCoLC)6372649
NLM ID:
9200594A [Motion picture, Remote electronic resource, Sound recording, Videorecording]

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