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cells
cell cycle
17
Biology
Undergraduate 1
03/05/2009

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Term
Name order of Cell cycle
Definition
Interphase: G1, (G0), check point, Synthesis, G2, Checkpoint
M-phase: Mitosis, check point, cytokenesis.
Term
how many cells in humans?
Definition
23 trillion
Term
Mitosis order
Definition
prophase, metaphase, anaphase, telephase
Term
Prophase
Definition
nuclear sack begins to dissolve
nucleolus begins to disappear
Centrioles migrate to polar ends
Chromatin begin to condense into chromasoms
Term
Centrioles are.....
Definition
Where Microtubulin are built
Term
Metaphase
Definition
Chromosomes attach to spindle fibers and are aligned at the equator of the cell
Term
Anaphase
Definition
sister chromatids are pulled apart and make daughter chromosomes. heading towards poles.
Term
Telephase
Definition
cleavage furrow developes nucleolus begins to reform, chromasomes lengthen and condense (->long stringy), nuclear envelope begins to rebuild
Term
Cytokinesis
Definition
microfilaments across cell become excited and pull in cell wall so that it looks pinched. cell splits into two individual cells
Term
inhibition factors
Definition
when cells feel like they need to stop dividing like crowding inhibitions.
Term
Amoebas
Definition
tubes are built between two cells and share genetic info
Term
Asexual reproduction is in what kind of cell? how do they reproduce? What is good and bad about this?
Definition
prokaryotes, reproduce thru binary fission (to the second power, 2,4,8,16)good-lots of them, bad-no genetic diversity unless there are mistakes- mistake can be tolerant of things others cant (antibiotics)
Term
grafting
Definition
asexual reproduction- like seedless watermelons
Term
why sex?
Definition
genetic scrambling to increase diversity and stability
Term
haploid
Definition
gametes- sperm, egg
Term
Diploid
Definition
Sperm inside of egg.
Term
homologous
Definition
pairs of chrom. carrying the same trait.
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