Heredity (Encyclopaedia Britannica Films, 1939)

1,270 views · Published 18 December 2018 · 10:53 · Indexed 23 September 2026

Channel: National Library of Medicine · 2018 · Science & Technology

Watch on YouTube

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. 

Learn more about this film at NLM Digital Collections: http://resource.nlm.nih.gov/9200594A

Learn more about the National Library of Medicine's historical audiovisuals program at: https://www.nlm.nih.gov/hmd/collections/films.html

More from this channel