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 IPMATPMAT Meiosis includes Prophase II, Metaphase II, Anaphase II, and Telophase II.

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Presentation on theme: " IPMATPMAT Meiosis includes Prophase II, Metaphase II, Anaphase II, and Telophase II."— Presentation transcript:

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2  IPMATPMAT Meiosis includes Prophase II, Metaphase II, Anaphase II, and Telophase II.

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4  Meiosis produces 4 haploid cells known as gametes.  Each gamete is UNIQUE and will be used for sexual reproduction.  Remember, the haploid number of chromosomes for humans is 23 (n = 23)

5  Meiosis reduces the chromosome number to one set. Fertilization restores the diploid number when the gametes are combined.  In sexual reproduction, two individuals (parents) contribute genes to the offspring. This form of reproduction results in greater genetic variation in the offspring than asexual reproduction.

6  Meiosis in females is called oogenesis produces 1 egg (ovum) and three polar bodies All three polar bodies will die. This is an uneven division of the cytoplasm.

7 ♀ Female

8  Meiosis in males is called spermatogenesis. Produces 4 sperm cells. This is an even division of the cytoplasm.

9 ♂ ♂ Male

10  Crossing Over: portions of a chromatid on one homologous chromosome are broken and exchanged with corresponding chromatid portions of the other homologous chromosome.  This increases genetic variation.

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