Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
17 Cards in this Set
- Front
- Back
How many stages are in a true cell cycle
|
4- G1 S G2 M
|
|
Which Phase includes G1, S, G2
|
INTERPHASE
|
|
What is the purpose of Interphase
|
Duplicates DNA
|
|
What does each step of Interphase do?
|
G1- Creates Chromatin
S- Chromatin begin to coil G2- RNA & Protein are synthesized-PROOF READING PHASE- Mistakes are found and repaired |
|
What phase comes after Interphase
|
M- the mitotic phase
|
|
What happens in the Mitotic Phase
|
Cells divide
|
|
What are the 4 stages of the M Phase
|
1. Prophase
2. Metaphase 3. Anaphase 4 Teleophase |
|
What happens in Prophase
|
Mitosis begins:
The membrane around the nucleus disintegrates. DNA condenses into chromosomes, then splits into double-stranded chromatids. |
|
What disappears in Prophase
|
Nucleus and Nuclear envelope
|
|
What structure moves the chromosomes to the correct location for cell division?
|
Microtuble
|
|
True or false? Centromeres are used to line up the chromosomes during metaphase.
|
True
|
|
What happens in Metaphase
|
chromosomes line up in the middle of the cell
|
|
What happens in Anaphase
|
Chromatids separate towards opposite poles
|
|
How are kinetochore and nonkinetochore microtubules defined?
|
Kinetochore- attached to microtubles
Nonkinetochore- do not |
|
What happens in teleophase
|
The nuclei at each pole form again. The chromosomes are now separated into two identical nuclei. This is the end of mitosis.
|
|
How many cells are there at the end of telophase?
|
1- has not separated into 2 different cells yet
|
|
What happens after Teleophase
|
Cytokinesis- Cell seperates into 2 different cells
|