9 - • Anaphase I o Chromosomes move toward poles(23 •...

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Meiosis: Separates homologues Forms haploid gametes Gametes have only one member of each homologous pair Somatic mutation: some cells have one genetic makeup and others have another Gametes are made early and then set aside o Less chance of mutations Prophase I (reduction division) o 1. Chromosomes become distinct o 2. Synapsis (coming together) of homologous pairs o 3. Crossing over (mapping) Metaphase I o 1. Four chromatids at metaphase plate (tetrad) o 2. Homologues go in opposite directions
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Unformatted text preview: • Anaphase I o Chromosomes move toward poles (23) • Telophase I o Two new cells formed Each has one homolog of the original homologous pair and so is a haploid • Meosis II o Like mitosis o Haploid cell Haploid cell o Sister chromatids separate • Makes one functional egg and four functional sperm • Salamander Haploid = 3 o Draw Anaphase Mitosis o Anaphase Meiosis I o Anaphase Meiosis II...
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