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Take a test on the topic: https://goo.gl/Nt64Rg Go to the simulators: https://goo.gl/fxVugC You can study effectively and with pleasure! Home school InternetUrok.ru - complete secondary education from 1 to 11 grades remotely, the possibility of official enrollment at any time of the year: https://home-school.interneturok.ru/?... Ask a question about the lesson: https://goo.gl/iNpPRZ Other video lessons on the school curriculum - at https://interneturok.ru This video lesson was created specifically for independent study of the topic "Chromosomal Theory of Heredity". During the lesson, everyone will be able to learn how Mendel's hereditary elements and improved microscopes led to the discovery of the chromosome theory of heredity.