Reproduction. Viral Reproduction Viruses Prokaryotic Reproduction.

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Presentation transcript:

Reproduction

Viral Reproduction

Viruses

Prokaryotic Reproduction

Bacterial Fission

Eukaryotic Reproduction

Chromosome Structure

Mitotic Figures - Allium Allium Root Meristem - A Region of Cell Division

Three kinds of eukaryotic cell reproduction

Eukaryotic Life Cycles

Cell Cycle

Chromosome Structure Monads and Dyads

Dyad Chromosomes

Ploidy and Chromosome Structure

Mitosis

A Metaphase Spindle

Mitotic Phases - Plant

Sexual Reproduction Meiosis and Syngamy

Eukaryotic Life Cycle

Meiosis

Meiosis I Bivalent 2 paired homologues (4 chromatids) 5 cross-overs

Why Did Meiosis Evolve?

Crossing-over Requires Multiple Heterozygosity

Syngamy Produces Heterozygosity Required for Meiosis to Function

Spindle Connections in Cell Divisions

Syngamy SEM Syngamy (Fertilization) Fusion of an Egg and a Sperm

Sperm, Egg, and Zygote