M6: Cell Cycle Flashcards
is a repeated pattern of growth and division that occurs in eukaryotic cells
cell cycle
usually divides and self reproduce through binary fission
prokaryotic cells
what are the 3 major phases of the cell cycle
G0
M-Phase
interphase
for cell growth
- by the end of __________ a cell has two full sets of DNA (chromosomes) and is large enough to beign the dvision process
interphase
after interphase 23 pairs of chromosomes would become
46 pairs
interphase is divided into 3
G___1 (G1)
__ phase
____ __ (G2)
Gap 1 (G1)
s phase
gap 2
interphase part wherein cells grows and carry out normal functions and replicate their organelles
- longest phase
- for growth
gap1(g1)
second phase in the interphase
synthesis (S)
where dna synthesis happens
synthesis (S)
- last stage of interphase
- it is for additional growth
-prepares the cell for the next phase - adds size
Gap 2 (G2)
what is the m-phase
mitosis
for cell division: making two cells out of one cell
mitosis
phases of mitosis
P__________–
M_____________-
A_______________
T__________-
Prophase
metaphase
anaphase
telophase
originallly part of the telophase
cytokinesis
gap zero phase
G0
also known as quiescence state or Resting phase
G0
a cell in ___ phase can either stay there (not grow or divide anymore) or continue its progress and leave (senescent state)
G0
cell cycle can be divided into 2
a_____ phase
G_____ phase
action phase
gap phase
phase where s_phase (dna replication) and m-phase (mitotic division) happens
action phase
Where G0 (resting). G1 (Growth), G2 (Growth) is
gap phase
DNA Synthesis
dna/double helix > H______- > Nucleosome > C____ > Superc____ > C_________
dna/double helix > histones - > Nucleosome > coils > supercoils > chromosome
single dna strand
chromatid
cells that don’t divide anymore
neurons or nerve cells
After replication, chromatid becomes ________ ______ and looks like an x composed of ______ chromatids
Homologous chromosomes, sister
There are 4 distinct events that happen in ________
- Further condensing of the dna
- The nuclear envelope strts to disappear
- Centrioles would move towards the opposite side
- Spindle fibers start to appear
Prophase
The shortest part of mitosis
Metaphase
There are only two things that happen during ________
- Chromosomes allign each other in the center
- Spindle fibers attach th centromere of eachs ister chromatids to the poles of the cell
Metaphase
Mitosis (m-phase) is only ___% of the cell cycle
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