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19 Cards in this Set

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Interphase
"Growth phase"
1. Proteins/nutrients taken in
2. New organelles produced
3. Cell membrane grows
4. Chromosomes duplicate
Centromere
Where sister chromatids are joined
Chromatid
An individual strand of a duplicated chromosome
Mitosis
The process in which chromatids are pulled apart and move to opposite ends of the cell
Cell division (cell reproduction)
Mitosis + cytokinesis
Cytokinesis
Cytoplasm and organelles divide into roughly equal halves and the cell splits into two
Prophase
1. Chromosomes condense
2. Centrioles move to the ends of the cells
3. Nuclear membrane disappears
4. Spindle fibres join to centromeres
Metaphase
Tug-of war occurs to line up chromosomes along the middle of the cell
Anaphase
Sister chromatids separate and spindle fibres pull one to each end of the cell
Telophase
1. Spindle fibres disappear
2. Nuclear membranes form around each set of chromosomes
3. Chromosomes uncoil
Meiosis
Two cell divisions that result in four daughter cells each containing 1/2 of the number of chromosomes
Prophase I
1. Chromosomes condense
2. Nuclear membrane disappears
3. Spindle forms
Metaphase I
Pairs of homologous chromosomes line up along middle of the cell
Anaphase I
One from each pair of homologous chromosomes is pulled to each end of the cell

Chromatids stay attached at the centromere
Telophase I
1. Paired chromatids uncoil
2. Nuclear membrane forms around each
3. Spindle disappears
4. Cytokinesis occurs
Prophase II
1. Paired chromatids condense
2. Nuclear membrane disappears
3. Spindle forms
Metaphase II
Paired chromatids pulled to the middle of the cell
Anaphase II
Chromatids pulled apart and pulled to opposite ends of the cell
Telophase II
1. Chromosomes uncoil
2. Nuclear membrane forms
3. Spindle disappears
4. Cytokinesis occurs