Unformatted text preview: 4. During prophase I of meiosis the four sister chromatids formed from the original pair of homologous chromosomes remain connected to form a tetrad; whereas in mitosis each pair of sister chromatids migrates to the metaphase plate independently of one another. * Crossing-over of genetic information occurs when the sister chromatids are in the tetrad state. This increases genetic variability in the resulting cells. 5. The goal of meiosis is to produce genetically different cells that have half the number of chromosomes as the original cell; while the goal of mitosis is to produce two cells that are genetically identical to the parent cell....
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- Fall '10