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cell division
Process by which cells reproduce
Chromatin
thin coiled strand composed of DNA and protein
Chromatid
the two identical parts of a chromosome
Centromere
point of which each pair chromatids is attracted
When a cell divides what occurs
1) DNA replicates
2) DNA beings to coil
Homologue chromosome
both chromosomes of a pair that are exactly alike (they are indistinguishable)
Diploid (2n)
a cell that contains both chromosomes of a homologous pair
Humans Diploid (2n)
46
Earthworms Diploid (2n)
36
Monoploid (Haploid) (1N)
a cell that has only one chromosome of each homologous pair
Monoploid humans (1n)
23
Monoploid earthworms (1n)
18
Cell cycle
the sequence of growth and division of a cell
Mitosis
division of the nucleus