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CELL REPLICATION (Mitosis (asexual) #Both go through IPMATC #Both copy DNA…
CELL REPLICATION
Mitosis (asexual)
#Both go through IPMATC
#Both copy DNA
2 diploid daughter cells
Diploid: Two copies of all chromosomes (2n)
To make somatic cells
Somatic cells: Body cells that contain a full number of chromosomes
Problems can lead to cancer
Meiosis (sexual)
#Different number of chromosomes(46 vs. 23)
#Different type of cell made(somatic vs. gamete)
#Different dumber of cells made (2 vs. 4)
#Different number of cell divisions (once vs. twice)
To make gametes
Gametes: sex cells (sperm or eggs)
4 haploid daughter cells
Haploid: One copy of all chromosomes (1n)
Problems can lead to birth defects
Anaphase
Sister chromatids pull apart (Mitosis only)
Homologous chromosomes pull apart (Meiosis only)
Spindle Fibers: Fibers that pull apart chromatids or chromosomes
Prophase
Sister chromatids pair up (Mitosis only)
Chromatid: one of the parts of a duplicated chromosome
Homologous chromosomes pair up (Meiosis only)
H.Chromosomes: Matching chromosomes from each parent during sexual reproduction
Crossing over occurs during Prophase 1
Metaphase
Sister chromatids line up in the middle (Mitosis only)
Centromere: joins sister chromatids together in the center
Homologous chromosomes line up in the middle (Meiosis)
Telophase
Cleavage Furrow occurs
Two nuclei formed
Interphase
DNA copies, cell grows (before PMAT starts)
Cytokinesis
Cytoplasmic division (happens after PMAT/cell cycle)
Cyto. Divis.:When the cytoplasm divides
