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Biology: Independent Assortment - Homologous Chromosomes

http://www.mindbites.com/lesson/1458 for full video. http://www.mindbites.com/series/104 for a bundle of videos on Understanding Meiosis. For an even broader bundle of videos that cover Cell Reproduction and Understanding Meiosis, check out http://www.mindbites.com/series/379 . To search for topic-specific help in our library of 400+ video products for Biology, please refer to our Biology category at: http://www.mindbites.com/category/22-biology . To check out our full Biology video course, with 390+ videos included, refer to: http://www.mindbites.com/series/441-biology . This lesson covers the concept of independent assortment. This is a critical idea for the tracking of genes and heredity with the help of the idea of meiosis. Tracking genes on chromosomes through meiosis can tell us something about genetics. Homologous chromosomes are chromosome pairs that contain genes that control the same traits. Homologous chromosomes can assort independently of other pairs of homologous chromosomes. This concept is called 'independent assortment' and it leads to many possible combinations of chromosomes in gametes and offspring. The lesson will also explain how disjunction (the separation of homologous chromosomes) further contributes to the number of different chromosomal combinations or outcome possibilities. The combination of synapsis and disjunction occur and create independent assortment, which allows for drastically different trait combinations. The more pairs of chromosomes an animal has, the more possibilities there are for possible combinations of traits and chromosomes in offspring. Taught by Professor George Wolfe, this lesson was selected from a broader, comprehensive course, Biology.
Length: 03:14

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