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http://www.mindbites.com/lesson/1462 for full video
http://www.mindbites.com/series/102 for a bundle of videos on the cell cycle and mitosis or http://www.mindbites.com/series/379 for a full set of videos on the ins and outs of cell reproduction including all of the aforementioned and more. Or, if you're really needing broader help with Biology, check out the full Biology course (390+ videos) at http://www.mindbites.com/series/441/.
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Mitosis seems to be a sticking point for many biology students. In this lesson, Professor Wolfe simplifies the concept of mitosis by breaking it down into the functions and forgoing the vocabulary (for the time being). He begins with a review of the eukaryotic cell cycle. DNA is only packed into chromosomes when a cell is going to do mitosis. A chromosome is two identical strands of DNA connected by a centromere. The centromere includes a section called the kinetochore. During mitosis, the nucleus of the cell splits and then the chromosomes form. The mictrotubiles connect to the kinetochrome and allow for chromosomal movement and division.
Taught by Professor George Wolfe, this lesson was selected from a broader, comprehensive course, Biology. This course and others are available from Thinkwell, Inc. The full course can be found at http://www.thinkwell.com/student/product/biology. The full course covers evolution, ecology, inorganic and organic chemistry, cell biology, respiration, molecular genetics, photosynthesis, biotechnology, cell reproduction, Mendelian genetics and mutation, population genetics and mutation, animal systems and homeostasis, evolution of life on earth, and plant systems and homeostasis.
Founded in 1997, Thinkwell has succeeded in creating "next-generation" textbooks that help students learn and teachers teach. Capitalizing on the power of new technology, Thinkwell products prepare students more effectively for their coursework than any printed textbook can. Thinkwell has assembled a group of talented industry professionals who have shaped the company into the leading provider of technology-based textbooks. For more information about Thinkwell, please visit www.thinkwell.com.