Meiosis Meiosis starts with a diploid (2N) Cell. But had (4N) DNA
Prophase I <ul><li>Dyad pairs align to create  “tetrads”, non sister chromatids connect and trade sections at a “chiasma”,...
Metaphase I <ul><li>Spindle fibers attach each dyad at the kinetochore  tension from spindle fibers aligns the tetrads at ...
Anaphase I <ul><li>Chiasmata break apart and sister chromatids begin migrating toward opposite poles. </li></ul>
Telophase I <ul><li>Cleavage furrow forms, beginning the process of cytokinesis (Cell division) resulting daughter cells a...
Prophase II <ul><li>Spindle formation begins and centrosomes begin moving toward poles. </li></ul>
Metaphase II <ul><li>Tension form spindle fibers alligns chromosomes at the metaphase plate. </li></ul>
Anaphase II <ul><li>Chromatids separate and begin moving to the poles. </li></ul>
Telophase II <ul><li>Cleavage furrow forms, beginning cytokinesis  </li></ul>
Gamete (1N) <ul><li>Nuclear envelopes form and chromosomes disperse as chromatin. Meiosis has produced four daughter cells...
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  1. 1. Meiosis Meiosis starts with a diploid (2N) Cell. But had (4N) DNA
  2. 2. Prophase I <ul><li>Dyad pairs align to create “tetrads”, non sister chromatids connect and trade sections at a “chiasma”, a process called “crossing over” </li></ul>
  3. 3. Metaphase I <ul><li>Spindle fibers attach each dyad at the kinetochore tension from spindle fibers aligns the tetrads at the cell equator. </li></ul>
  4. 4. Anaphase I <ul><li>Chiasmata break apart and sister chromatids begin migrating toward opposite poles. </li></ul>
  5. 5. Telophase I <ul><li>Cleavage furrow forms, beginning the process of cytokinesis (Cell division) resulting daughter cells are haploid (1n) </li></ul>
  6. 6. Prophase II <ul><li>Spindle formation begins and centrosomes begin moving toward poles. </li></ul>
  7. 7. Metaphase II <ul><li>Tension form spindle fibers alligns chromosomes at the metaphase plate. </li></ul>
  8. 8. Anaphase II <ul><li>Chromatids separate and begin moving to the poles. </li></ul>
  9. 9. Telophase II <ul><li>Cleavage furrow forms, beginning cytokinesis </li></ul>
  10. 10. Gamete (1N) <ul><li>Nuclear envelopes form and chromosomes disperse as chromatin. Meiosis has produced four daughter cells, each with 1N chromosomes and 1N DNA. Later, in fertilization, male and female 1N gametes will fuse to form one 2N Zygote </li></ul>

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