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Mitosis - Flashcards

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Class:BIO 2313 - Genetics
Subject:Biology
University:University of Texas - San Antonio
Term:Spring 2013
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Cell cycle(1) G1- during G1 the cell grows
cell cycle (2) G(0)- cells may enter a non-dividing phase
cell cycle (3) G/S checkpoint- after the G/S checkpoint, the cell is committed to dividing.
cell cycle(4)   S- the DNA replicates
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cell cycle(5) G2- the cell prepares for mitosis
cell cycle (6) G2/M checkpoint- after the G2/M checkpoint, the cell can divide
cell cycle(7) M- mitosis and cytokinesis(cell division) take place in the M phase
mitosis  a process that creates two genetically identical daughter cells from a single original parent.
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somatic cell the cells that form all your organs, tissues and structures.
substages of M phase
– karyokinesis, 
-cytokinesis
karyokinesis -partitioning of DNA into daughter cell nuclei
cytokinesis partitioning if the cytoplasm
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interphase the chromosomes are relaxed and the nuclear membrane is present
prophase The nucleolus disappears and the chromosomes condense(held together at the centromere) and become visible. each chromosome possesses two chromatids and the mitotic spindle forms.
prometaphase The nuclear membrane disintegrates. spindle microtubles attach to chromatids
Metaphase chromosomes line up on the metaphase plate
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Anaphase sister chromatids separate and move upwards towards poles
Telophase Chromosomes arrive at spindle poles. the nuclear membrane reforms and the chromosomes relax.
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 Cell cycle(1)G1- during G1 the cell grows
 cell cycle (2)G(0)- cells may enter a non-dividing phase
 cell cycle (3)G/S checkpoint- after the G/S checkpoint, the cell is committed to dividing.
 cell cycle(4)  S- the DNA replicates
 cell cycle(5)G2- the cell prepares for mitosis
 cell cycle (6)G2/M checkpoint- after the G2/M checkpoint, the cell can divide
 cell cycle(7)M- mitosis and cytokinesis(cell division) take place in the M phase
 mitosis a process that creates two genetically identical daughter cells from a single original parent.
 somatic cellthe cells that form all your organs, tissues and structures.
 substages of M phase
– karyokinesis, 
-cytokinesis
 karyokinesis-partitioning of DNA into daughter cell nuclei
 cytokinesispartitioning if the cytoplasm
 interphasethe chromosomes are relaxed and the nuclear membrane is present
 prophaseThe nucleolus disappears and the chromosomes condense(held together at the centromere) and become visible. each chromosome possesses two chromatids and the mitotic spindle forms.
 prometaphaseThe nuclear membrane disintegrates. spindle microtubles attach to chromatids
 Metaphasechromosomes line up on the metaphase plate
 Anaphasesister chromatids separate and move upwards towards poles
 TelophaseChromosomes arrive at spindle poles. the nuclear membrane reforms and the chromosomes relax.
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