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13 Cards in this Set

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Who discovered chromosomes/mitosis
what year
walther fleming
1882
chromatin
complex of DNA and protein
chromosomes are composed of ____
chromatin
nucleosome
every 200 nucleotides, the DNA complex is coiled around a core of 8 histone proteins, forming a complex called a nucleosome
karyotype
particular array of chromosomes an individual possesses
diploid
refers to one set of chromosomes needed to define an organism
centromere
a condensed area found on all eukaryotic chromosomes
5 phases of Cell cycle
G1, S, G2 (Interphase)
M (Mitosis)
C (cytokinesis)
centrioles
pair of microtubule organizing centers
Mitosis 4 phases
PMAT

Prophase
Metaphase
Anaphase
Telophase
3 main actions that take place during Prophase
1) Spindle apparatus is assembled
2) Sister chromatids are linked to opposite poles of the cell by microtubules
3) Nuclear envelope breaks down
3 main checkpoints in cell cycle
1) G1/S
2) G2/M
3) Spindle Checkpoint
passage through checkpoints controlled by ________
Cdk's
Cyclin-dependent kinases