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CH.4 CELL GROWTH & DIVISION (Growth Phase of Cell Cycle Cell_cycle…
CH.4 CELL GROWTH & DIVISION
Growth Phase of Cell Cycle
G2 Phase
cells prepare for divison
3-5hrs
spindle microtubules tubulins synthesized
processing proteins made
breaks down nuclear envelope
processeds chromosomes
S Phase
"synthesis"
gene replication
has 2 chromatids
G1 Phase
"gap 1"
1st stage after divison
generally longest part of cycle
just 1 chromatid
Division phase of Cell
Cytokinesis
division of cytoplasm
formation of phragmoplast
Karyokinesis
Meosis
daughter nuclei replicate mother
2 sex cells fuse
form zygote
1 complete set of chromosomes
MEIOSIS 1
Prophase I
Metaphase I
Anaphase I
Telophase I
MEOSIS II
chromatids seperate
division of nucleus
Mitosis
Metaphase
chromosomes aligned on plate
Telophase
separate into 2 cells
Anaphase
pulls apart daughters
duplication division
most common type
Prophase
chromosomes condense
Interphase
long double helix
duplicated twin chromatids
Cell Division in Algae
Cytokinesis
Nuclei
Cell Division of Prokaryotes
cytokinesis= infurrowing
pinches in 2
Chloroplast Division
Mitochondria Division
in furrowing or pulled apart
Mitosis=duplication division
almost all cells
Meiosis= reduction division
1 set of genes
Red (carpels)
Yellow (stamens)
Mitochondria & plastids replicate DNA
same process as bacteria
