cell cycle and cellular reproduction Flashcards
the cell cycle:
G1-growth
S-DNA synthesis
G2- growth and prep for mitosis
M- mitosis (cell division)
interphase
This is the time when a cell performs its usual functions depending on its location in the body; most of the cells time is spent in interphase
M (mitotic) stage
Following interphase the cell divides via mitosis (nuclear division) and cytokinesis (division of the cytoplasm)
what controls the cell cycle?
a signal and growth factors
prophase
Chromatin has condensed and the chromosomes are visible
Prometaphase
Extra modern step where kinetochores appear on the side of centromeres
metaphase
Centromeres of the chromosomes are now aligned in the center of the cell; this is called the metaphase plate
anaphase
The two sister chromatids of each duplicated chromosome separate at the centromere and
pull to opposite ends of the cells
telophase
The spindle fibers disappear and
a cleavage furrow forms
* Nuclear envelope starts to
reform
* When finally split we call this
cytokinesis
functions of mitosis
growth and repair