vidéo : l'hérédité humaine 2eme année collège - SVT 2AC - PART1

The video is about heredity in humans. It starts with a definition of heredity and then goes on to discuss the different types of hereditary characters. The first type is characters that are specific to the human species, such as the ability to walk upright. The second type is characters that are specific to an individual, such as eye color. The video then discusses acquired characters, which are not passed down from parents to children. Finally, the video discusses the use of family trees to track the inheritance of hereditary characters.