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Mitosis And Meiosis (MEIOSIS (PHASES (Metaphase I (Pairs of homologous…
Mitosis And Meiosis
MITOSIS
Cell Division
replace worn out cells.
can lead to genetical disorders.
1 cell to 2 identical cells.
can be corrected through apoptosis.
PHASES
Interphase
DNA is copied in a semi-conservative DNA process.
Prophase
Chromosomes pair up.
Metaphase
Chromosomes line up in the equator.
Anaphase
Sister chromatids are pulled apart.
Telophase
Cell pinches in the middle.
Cytokinesis
Complete division of the cytoplasm.
MEIOSIS
sexual cellular division.
divides into meiosis I and meiosis II
these cells are packed into gametes (sperm and egg).
PHASES
Metaphase I
Pairs of homologous cells move to the equator
Anaphase I
Homologous cells move to the opposite side of the cell.
Prophase II
A new spindle forms around the chromosomes.
Telophase I and Cytokinesis
Chromosomes gather at the poles and cytoplasm divides.
Prophase I
Crossing over occurs and nuclear envelope breaks.
Metaphase II
Chromosomes line up in the equator.
Anaphase II
Centromeres divide. Chromatids go to the opposite sides of the equator.
Telophase II and Cytokinesis
Each set of chromosomes divide.
reduces the number of chromosomes before dividing