Transcript Document

Reproduction
Viral Reproduction
Viruses
Prokaryotic Reproduction
Bacterial Fission
Eukaryotic Reproduction
Chromosome Structure
Allium Root Meristem
-A
Mitotic Figures - Allium
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
Mitosis
A Metaphase Spindle
Mitotic Phases - Plant
Sexual Reproduction
Meiosis and Syngamy
Eukaryotic Life Cycle
Meiosis
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 (Fertilization)
Fusion of an Egg and a Sperm
Syngamy SEM
Sperm, Egg, and Zygote