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MEIOSIS

MEIOSIS. Meiosis. n. 2n. produces haploid gametes. n. 2n. 4n. n. 2n. n. MITOSIS. 2 diploid cells. MEIOSIS. 4 haploid cells. Prophase I Homologous chromosomes pair up in tetrads. Tetrad = 4 Chromatids across. Metaphase I Tetrads line up along metaphase plate.

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MEIOSIS

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  1. MEIOSIS

  2. Meiosis n 2n produces haploid gametes n 2n 4n n 2n n

  3. MITOSIS 2 diploid cells MEIOSIS 4 haploid cells

  4. Prophase IHomologous chromosomes pair up in tetrads Tetrad = 4 Chromatids across

  5. Metaphase ITetrads line up along metaphase plate Tetrad = 4 Chromatids across

  6. Chromosomes separate and cytokinesis occurs

  7. Chromosomes separate and cytokinesis occurs

  8. MITOSIS 2 diploid cells MEIOSIS 4 haploid cells

  9. Mitosis One Dyads Two Diploid Growth/Repair Asexual Reprod. Meiosis Two Tetrads, then dyads Four Haploid Gamete Formation DIVISIONS LINING UP IN METAPHASE # OF RESULTING CELLS # OF SETS OF DNA PURPOSE

  10. Gametogenesis 1 ovum each time meiosis occurs 4 sperm cells each time meiosis occurs 2n 4n 2n 4n 2n 2n 2n 2n n n n n n n n n

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