Sexual Reproduction

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Sexual Reproduction
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Three kinds of eukaryotic cell reproduction
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Eukaryotic Life Cycles
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Mitosis
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Meiosis
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Meiosis
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Spindle Connections inCell Divisions
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Overview of Meiosis
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Independent AssortmentRecombination of genes
located on different chromosomes
Non-homologous pairs of chromosomes orient
independently of one another on the metaphase
plate of the spindle Below, the relative
movement of the A and B chromosomes is
illustrated
Anaphase I
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Crossing-OverRecombination of genes located on
the same chromosomes
nucleus
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Meiosis I Bivalent
2 paired homologues(4 chromatids) 5
cross-overs
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Synaptonemal Complex
chiasmata
chromatid
synapsing bivalent
2 Dyads
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Synaptonemal Complex Time Course
Synaptonemal Complex
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Homologous Recombination
strand invasion ensures homologous nicks
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Eukaryotic Life Cycle
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Syngamy(Fertilization)
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Syngamy
Sperm
Sperm and Egg
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Sperm, Egg, and Zygote
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Why did sex evolve?
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Review of Genetic Changes
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Summary - Questions
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Summary - Answers
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Haploid Mitosis
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Diploid Mitosis
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Mitoses
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Meiosis
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Syngamy
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Practice
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Practice - Questions
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Practice - Answers