Metaphase I - During Prophase II, nuclear envelopes (if...

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Metaphase I | Metaphase I is when tetrads line-up along the equator of the spindle. Spindle fibers attach to the centromere region of each homologous chromosome pair. Other metaphase events as in mitosis. Anaphase I Anaphase I is when the tetrads separate, and are drawn to opposite poles by the spindle fibers. The centromeres in Anaphase I remain intact. Telophase I Telophase I is similar to Telophase of mitosis, except that only one set of (replicated) chromosomes is in each "cell". Depending on species, new nuclear envelopes may or may not form. Some animal cells may have division of the centrioles during this phase. Prophase II |
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Unformatted text preview: During Prophase II, nuclear envelopes (if they formed during Telophase I) dissolve, and spindle fibers reform. All else is as in Prophase of mitosis. Indeed Meiosis II is very similar to mitosis. Metaphase II | Metaphase II is similar to mitosis, with spindles moving chromosomes into equatorial area and attaching to the opposite sides of the centromeres in the kinetochore region. Anaphase II | During Anaphase II, the centromeres split and the former chromatids (now chromosomes) are segregated into opposite sides of the cell. Telophase II Telophase II is identical to Telophase of mitosis. Cytokinesis separates the cells....
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This note was uploaded on 11/29/2011 for the course BIO BSC1010 taught by Professor Gwenhauner during the Fall '10 term at Broward College.

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Metaphase I - During Prophase II, nuclear envelopes (if...

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