Feb 18 Sexual Reproduction and Evolution Review

Feb 18 Sexual Reproduction and Evolution Review -...

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Biol 1401 Sexual Reproduction and Evolution Review Feb 18 th , 2011  Ch.12, 15 1. During meiosis, the  first division (reduction division)  separates the  homologous chromosomes (homologs)  into two cells; the  second  division (equal division)  separates the  sister chromatids  into two cells. 2. What are the two events that lead to the genetic variations in offspring?  1) Cross over 3. These two events happen during which phases of the reduction division? 1) Prophase 2) Metaphase 4. Define crossing-over. –   results in an exchange of some DNA  contributed by the two parents, which is the basis for some of the  variability seen in the offspring 5. What is the difference between the plant and animal life cycles? Animal) - come from their mother or sometimes an egg, reproduce by  mating Plant) - come from seeds, they contain chlorophyll. They reproduce  by fruits with seeds
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This note was uploaded on 03/23/2011 for the course BIOL 1401 taught by Professor Holaday during the Spring '08 term at Texas Tech.

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Feb 18 Sexual Reproduction and Evolution Review -...

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