Lecture 6

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Unformatted text preview: http://www.wineanorak.com/blog/uploaded_images/drosophila-741946.jpg Meiosis and sexual reproduction 1 Last Time Chromosome structure Cell division Binary Fission (prokaryotes) Mitosis/Cell cycle (eukaryotes) structures phases 2 Meiosis and sexual reproduction Gametogenesis: sperm and egg production Stages of meiosis Important features New perspectives on Mendel's Laws Sex linked traits Sex determination Key experiments in X-linked traits 3 Gametogenesis formation of gametes, the products of meiosis, e.g. sperm and egg http://www.hrsu.mrc.ac.uk/img/research/gametogenesis_col_200x152.jpg http://www.medimagery.com/gametogenesis.JPG 4 Meiosis Swap mitosis with meiosis here in gonad cells Different and dramatic stuff happens in meiosis! 5 Meiosis Meiosis I Meiosis II 6 Meiosis - source of variability 1st generation 2nd generation http://www.cate-blanchett.net/cate-blanchett-1024x768-18641.jpg http://blog.newsok.com/gogreen/files/2008/04/indy.jpg 7 Meiosis > Prophase > subphases all the exciting bits happen here! Leptotene...
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This note was uploaded on 10/13/2009 for the course BIO 325 taught by Professor Saxena during the Fall '08 term at University of Texas at Austin.

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