Each centrosome contains two
centrioles
The spindle apparatus originates from the
Microtubule organizing centers (MOC)
Centromeres hold two sister ____ together.
Chromatids
How does cytokinesis differ between plant and animal cells?
Plant cells are cemented together by a middle lamella; animals cells wholly seperate
A cleavage furrow forms and eventually pinches so two physically separate cells form, in an
animal cell
Vesicles from Golgi bodies migrate and fuse to form a cell plate in
plant cells
In ___ cells, actin and myosin microfilaments shorten to tighten the cleavage furrow and eventually form to separate cells
Animal cells
Animal cells have ____, while plant cells do not
Centrosomes
At which stage of cell division do sister chromatids separate?
Anaphase of Mitosis
Metaphase is when the genetic material lines up at the
Middle of the cell
Anaphase is when the genetic material are
pulled away from each other to opposite sides of the cell
Sister chromatids are joined to each other by a
centromere
In anaphase 1 of meiosis, _____ separate
tetrads
The separation of sister chromatids for meiosis happens in
anaphase 2
Mitosis takes a single diploid cell and produces
two identical diploid cells
Mitosis occurs in
somatic cells
Meiosis takes a single diploid cell and produces
four genetically unique haploid cells
Where will a cell spend most of its time within the cell cycle?
Interphase
At what point of the cell cycle does DNA replication occur?
S-phase
The G1 phase is the stage where the cell
increases in size
The S phase is the stage where
DNA synthesis (replication) occurs
The G2 phase is the stage where the cell grows and
prepares for cellular division.
In a somatic cell, what is true about the state of DNA at the end of interphase versus at the end of cytokinesis?
Both will be diploid, containing the same number of chromosomes
What is a functional limitation that will encourage cell division?
A very large cell volume
When conditions are not favorable for cell growth and division, the cell goes in to
G0 phase
What is a process that is used in the regulation of the cell cycle?
Cell division is inhibited if there is a high cell density in the surroundings
Genetic variation of gametes is increased during which of the following stages of cell division?
Prophase 1 of Meiosis
Mitosis does not exhibit ______ and does not produce ______.
Mitosis does not exhibit genetic variation and does not produce gametes.
Meiosis 1 is where tetrads form and
synapse
During Meiosis, crossing over results in
genetic variation in gametes.