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30 terms

DNA replication and cell division 3-2-11

STUDY
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Nucleotide
building blocks of DNA
nucleotides are made up of what 3 parts???
sugar, phosphate, and base
nitrogin bases are
adenine, thymine, Guanine, and Cytosine
Double helix is held together by.......
hydrogen
first person to come up with the first double helix model
watson and crick
a GOES WITH
T
G goes with
c
Process of making a copy of DNA is called
DNA replication
first step in DNA replication is.......
it unwinds
2nd step in DNA replication is.....
breaks hydrogen bonds between bases
3rd step in DNA replication is......
unzipping
4th step in DAN replication is............
frees nucleotides and attaches to open bases
5th step in DNA replication is............
the 2 double helix is complete
Chromosome
structure within the nuclus containing genetic info. that is passes from 1 generation th the next
phases of the cell cycle are>>>
G1 phase, s phase, G2 phase ,and Mitosis
G1 phases
cell growth
s phase
DNA replication
G2 phase
preparation 4 miosis
Mitosis
CELL DIVISION
A human cell has ____ chromosomes
46
Cancer
cells lose the ability to controle growth, no linger respont to signals
Animal cell
clevage furrow
Plant cell
cel plate
nerve
THIS cell never dies after matrity
interphase
DNA replication takes place
metaphase
chromosomes are lined up in the cells equator
prophase
spindle fibers appear and the nuclear membrane in brocken down
telophase
nucleus and nuclear membrane reappear
anaphase
sister chromatids are pulled apart twards oppesit ends of the cell
DNA is located in......
the nucleus