Meiosis Review. Meiosis I: Replication Interphase I DNA Replication DNA Replication Chromatin a ball...
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Transcript of Meiosis Review. Meiosis I: Replication Interphase I DNA Replication DNA Replication Chromatin a ball...
Meiosis Meiosis ReviewReview
Meiosis I: ReplicationMeiosis I: Replication
Interphase IInterphase I DNA ReplicationDNA Replication Chromatin a “ball of Chromatin a “ball of yarn”yarn”
Prophase IProphase I Chromosomes Chromosomes coil and coil and condensecondense
Form a tetrad Form a tetrad ((synapsissynapsis))
Metaphase IMetaphase I Tetrads Tetrads align along align along equatorequator
Anaphase IAnaphase I Tetrads Tetrads
splitsplit Form dyadsForm dyads Dyads Dyads
move to move to opposite opposite polespoles
Telophase ITelophase I Cleavage furrow Cleavage furrow
formsforms Cell splits Cell splits
((cytokinesiscytokinesis)) Form two diploid Form two diploid
daughter cellsdaughter cells
Meiosis II: Reduction Meiosis II: Reduction DivisionDivision
InterkinesisInterkinesis Similar to Interphase ISimilar to Interphase I No DNA replicationNo DNA replication
Prophase IIProphase II Chromosomes condense Chromosomes condense and coiland coil
Metaphase IIMetaphase II Chromosomes Chromosomes
align along align along equatorequator
Anaphase IIAnaphase II Dyads split at Dyads split at centromerecentromere
Chromatids move to Chromatids move to opposite polesopposite poles
Telophase IITelophase II Cleavage Cleavage
furrow forms furrow forms Cell splitsCell splits Both diploid Both diploid
cell splitscell splits Forms 4 haploid daughter cellsForms 4 haploid daughter cells