location where the chromosomes line up in metaphase
100
What would happen if the G2 checkpoint was defective?
The cell would die OR the daughter cell would be different than the parent cell
200
What happens in the G1 and G2 phases ?
Growth and normal cellular functions
200
What characterizes prophase?
nucleus disappearing
nucleoulus disappearing
chromatin condenses to be chromatid to be chromosome
spindle fibers form between centrioles
centrioles are moving apart
200
Define Centromere
Structure which holds together two sister chromatids
200
What is the cell plate
forms during telophase in the plant cell
elongates across the cell until it fuses with the plasma membrane to form two new plant cells
200
How are chromatin, chromatid, and chromosomes similar
All strands of DNA
300
What does the S mean in the S phase and what happens in this stage?
S stands for synthesis and the DNA gets duplicated
300
In what stage do the chromosomes line up in the middle of the cell?
Metaphase
300
the cytoplasm divides
cytokinesis
300
define cleavage furrow
area where the plasma membrane pinches in the animal cell in telophase
300
If the parent cell has 65 chromosomes, how many chromosomes are in each daughter cell?
65
400
How many checkpoints occur in interphase? When do they occur? (ANSWER BOTH)
2 checkpoints occur in interphase
Occur after G1 and after G2
400
What events characterize anaphase?
The sister chromatids are being pulled apart
Microtubules attached to the centromere are shortening
cell elongates
400
Cell structures made of individual microtubule fibers that are involved in moving chromosomes during cell division are called...
spindles
400
Define interphase
non-dividing state
cell experiences normal functions
400
The two phases associated with cell division are...
Mitosis and cytokinesis
500
How do the G1 and G2 checkpoints differ?
G1 checkpoint makes sure the cell is large enough and is healthy enough to go through the cell cycle
G2 checkpoint sends out repair enzymes to make sure the DNA strand was copied correctly?
500
We said that telophase is opposite of prophase... what happens in telophase?
nucleus and nucleolus REAPPEARS
chromatids uncoil and become chromosomes
500
repeated sequence of growth and division during the life of a cell is called...
cell cycle
500
What stage are the chromosomes not visible?
Interphase and Telophase
500
What would happen if cytokinesis was skipped?
No genetics would be passed on
the cell would get too large
cell would die