Mitosis
What are the phases of mitosis?
Interphase, Prophase, metaphase, anaphase, telophase/cytokinesis
What happens in G1?
Cells grow, die or divide
In what phase does the mitotic spindle form?
prophase
Which domain does in prokayrotes does binary fission occur in?
Archae and bacteria
How many checkpoints are in interphase?
G1 checkpoint, M checkpoint, G2 checkpoint
What happens in prophase?
Chromatin condense into chromosome forming an X shape.
What happens in S phase?
DNA replication
In what phase does the mitotic spindle disappear?
telophase
During binary fission, the plasma membrane pinches __
inward
Define transformation. Hint (cancer)
A process in which cells divide indefinitely causing them to behave like cancer cells
What happens in Metaphase?
Centrosomes go to opposite sides of poles. Chromosomes line up in the middle
What happens in G2?
Cell grows more and prepares for cell divison
What are spindle fibers made of?
microtubules
Name the phases of binary fission
phase 1: parent cell
phase 2: replication of DNA
phase 3: segregation of DNA
phase 4: cells split into two
Most human cells are in __ phase
G0
What happens in Anaphase?
Sister chromatids are split apart to opposite sides of cell
What happens in G0?
What phase does kinetochore most contribute to?
anaphase
How many phases are in binary fission?
4
What controls the cell cycle?
signaling molecules present in cytoplasm
What happens in telophase and cytokinesis?
Telophase- mitotic spindle disappears, chromosomes begin to regain their shape. Cleavage furrow beings to form
Cytokinesis- Formation of cleavage furrow splits cells in two identical daughter cells
What % is interphase in the cell cycle?
90%
What is the function kinetochore?
provide a site for attachment of the spindle fibers to pull apart sister chromatids
What is the end result of binary fission?
two identical daughter cells
they activate or inactivate other proteins by phosphorlyation