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38 Cards in this Set
- Front
- Back
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nucleus diffuse
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Prophase
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condensation of chromosomes
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Prophase
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condensation of chromosomes
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Prophase
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chromosomes: shorter and thicker
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Prophase
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nucleoli disappear
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Prophase
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nuclear envelope disintegrated
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Prophase
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mitotic spindles form
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Metaphase
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spindle fibers attach to each chromosome
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Metaphase
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2 sister chromatids move toward opposite poles
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2 sister chromatids move toward opposite poles
Anaphase |
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spindle fiber shorten which pulls chromosomes
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Anaphase
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in completion, chromosomes lie in 2 groups near opposite poles of the spindle
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Anaphase
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nuclear envelope forms around the group of chromosomes
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Telophase
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nucleoli formed, spimdle fibers disappears
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Telophase
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cytoplasm divides in 2
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Telophase
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thin thread
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leptotene
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chromosomes become visible
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leptotene
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condensation of chromosome
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leptotene
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paired thread
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zygotene
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lateral pairing
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zygotene
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thick thread
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pachytone
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condensation continues, genetic exchange / crossing over
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Pachytone
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double thread
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diplotene
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synapsed chromosome begins to separate
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diplotene
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chiasma cross connection
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diplotene
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moving apart
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diakenesis
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maximum condensation
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diakenesis
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nuclear envelopes break down, spindle initiated
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diakenesis
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bivalents positioned with the centromere
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Metaphase 1
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bivalents move to the metaphase plate
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Metaphase 1
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homologous chromosomes each composed of 2 chromatids joined at the undivided centromere
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Anaphase 1
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spindle fibers break down
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Telophase 1
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nuclear envelope forms
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Telophase 1
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formation of 2nd division spindle
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Prophase 2
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centromeres of chromosomes in each nucleolus become aligned on the central plane of the spindle
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Metaphase 2
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centromeres divide
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Anaphase 2
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centromeres divide
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Anaphase 2
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chromatids move to the opposite poles
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Anaphase 2
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condensation of chromosomes in 4 haploid nucleus accompanied by division of cytoplasm
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Telophase 2
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