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Cell Cycle Screen Shot 2020-09-17 at 11.55.21 AM, Mitochondria and…
Cell Cycle Screen Shot 2020-09-17 at 11.55.21 AM
Growth Phase of the Cell Cycle
S Phase
DNA Replication
two identical chromatid
endoreduplication
Gene Amplification
G2 Phase
Preparation for mitosis
G1 Phase
Cell growth
Synthesis of nucleotides
Division Phase of the cell Cycle
involves 2 processes
Karyokinesis
Mitosis
results in
diploid daughter cell
occurs in
Somatic Cell
phases
Telophase
spindle dissapears
forms
nuclear envelope
Metaphase
metaphase plate
choromosomes become visible
moves to
metaphase plate
chromosome doubled
Prophase
Chromosome condense
breaks down
Nuclear envelop
produces
spindle
Anaphase
begins after
cohesin relaeses centromere
pulls apart
sister chromatids
centromeres split
duplication division
Meiosis
gametes
fuse together
zygote
diploid
hapliod
reductive division
two division
Meiosis I
Metaphse I
forms meaphae plate
Anaphase I
homologous chromosome separates completely
moves to opposite end
each chromosome has two chromatid
Telophase I
chromosomes uncoil
reappearance of
nucleus
nuclear envelop
Prophase I
5 Stage
zygotene
1 more item...
pachytene
1 more item...
leptotene
2 more items...
diplotene
2 more items...
diakinesis
1 more item...
Meiosis II
Cytokinesis
formation of phragmoplast
phragmosome
Less Common types of division in Plants
cell division may occur without nuclear division
Cell Division in Algae
Nuclei
unusual mitosis
some have both
intranuclear spindle
extranuclear spindle
Cytokinesis
phycoplast
many group
no wall
some group
do have wall
Division of Chloroplasts and Mitochondria
#
naked DNA
sparated by
membrane growth
daughter cell
must receive during cytokineis
one mitochondrion
one plastid
lack plastids
Cell Division of Prokaryotes
No occurance of
mitosis and meiosis
simple cytokinesis
by inforrowing
all genetic material
occurs as one or several rings of DNA
DNA replication
no centromere
Mitochondria and chloroplast are constructed similar
