Interphase
Prophase
Metaphase
Anaphase
Telophase/Cytokinesis
100
What is the longest portion of the cell cycle (90%)?
Interphase
100
What happens to the chromosomes?
They condense
100
Where do the centrosomes line up?
The metaphase plate
100
Do microtubules shorten or lengthen?
Shorten
100
Do chromosomes become denser or become less dense?
Less dense
200
What are the 3 phases of interphase?
G1, S, G2
200
Do the chromosomes line up?
No, that is metaphase.
200
Is this a picture of metaphase?
Yes, notice the line
200
What happens to the cell?
The cell elongates.
200
What developes and reappears?
Nuclear envelope developes and the nucleoli reappear
300
What happens in S Phase
DNA replication
300
List the 4 Key events in early prophase:
1) chromosomes condense
2)nucleoli disappear
3)mitotic spindle forms
4)centrosomes move further away
300
What attaches the chromosomes to the opposite poles?
Microtubules
300
What is an example of an error that can happen in anaphase?
Non-disjunction
300
What is the definition of cytokinesis?
The division of the cytoplasm
400
Is interphase a part of mitosis?
No, mitosis happens after interphase.
400
What happens to the nuclear envelope in late prophase?
It breaks down
400
Where do the microtubules attach to on the chromosome?
kinetochore
400
What step in MITOSIS is anaphase?
3rd
400
What appears in animals?
A cleavage furrow
500
What is G0?
When cells do not divide and some reenter the cell cycle
500
Explain what happens to the nuclear area in late prophase:
Microtubules enter the nuclear area with some attaching to kinetochores.
500
Sister chromatids are....
lined up
500
Sister chromosomes are....
Pulled apart
500
In plants, where do vesicles go, and what do they form?
They go to the middle of the cell and form a cell plate