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Topic: Cellular Reproduction Aim: How does meiosis occur? Do Now: List the steps of mitosis, sketch the pictures below and label each step. •Meiosis is the type of cell division by which sex cells (eggs and sperm) are produced. •Meiosis involves a reduction in the amount of genetic material. •A.K.A. reduction division To maintain normal chromosome number once fertilization occurs 23 23 46 •A.K.A. Gametes •Examples: human egg and sperm cells •Function is to fertilize •Used to carry out sexual reproduction 23__chromosomes •Have ___ each Meiosis consists of two successive nuclear divisions with only one round of DNA replication. 46 Parent cell 92 46 46 4 Daughter cells 23 23 23 23 Meiosis I •Prophase I •Metaphase I •Anaphase I •Telophase I Meiosis II •Prophase II •Metaphase II •Anaphase II •Telophase II To reduce chromosome number START 2n = ____ 46 •Called the Diploid # END 23 n = ____ •Called the Haploid #