Lecture 11 - Lecture 11- Sex & No Sex What is sex?...

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09/03/2008 15:53:00 Sex is recombination + outcrossing (Ridley) Gender is biologically determined by which gamete retains organelles when  the gametes merge.   o Female retains organelles o Male contributes nucleus Why have sex?  Why not? Asexual organisms can reproduce faster than sexual organisms. Sex increases variation, which provides resistance to diseases Asexual and Sexual Reproduction Asexual reproduction-mitosis Offspring = genetically identical to parent. Sexual reproduction-meiosis  genetically different  offspring Advantages/Disadvantages of Asexual Reproduction + There is always reproduction + No need to search for a partner (saves energy) + No sexual selection  + No competition for sex partners
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This note was uploaded on 03/31/2008 for the course BIO 116 taught by Professor Fink during the Winter '08 term at University of Michigan.

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Lecture 11 - Lecture 11- Sex & No Sex What is sex?...

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