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Cell Division
Cells grow, copy DNA, and divide
Cell Cycle
Interphase → Mitosis → Cytokinesis
Interphase
Cell grows, copies organelles, copies DNA, most time spent here
Mitosis
Division of the nucleus
Prophase
DNA coils into chromosomes, nuclear membrane breaks, spindle forms from centrioles
Metaphase
Chromosomes line up in the middle of the cell
Anaphase
Centromere splits, chromatids move apart, each chromatid is now a chromosome
Telophase
Nuclear membrane forms around chromosomes, cell looks like two
Cytokinesis
Cytoplasm and organelles split, forming two new cells
Cytokinesis (Animal)
Cell pinches in middle (cleavage furrow)
Cytokinesis (Plant)
Cell plate forms to split cells
Chromatin
Loose DNA in interphase, like uncoiled string
Chromosome
Coiled DNA in mitosis
Chromatid
One half of a chromosome
Centromere
Holds two chromatids together
DNA
Instructions for life
Gene
Section of DNA that makes proteins, determines traits
DNA Replication
Copying DNA so new cells have exact DNA
Asexual Reproduction
1 parent → identical cells
Sexual Reproduction
2 parents → gametes with half DNA → unique offspring
Nuclear Membrane
The "skin" around the nucleus that protects DNA