Mitosis- Cell Cycle Flashcards
Mitosis occurs in …..?
All living things
Mitosis
The process by which a cell divides to create 2 new identical cells
Purpose of mitosis
- Growth and development
2. Repair and replace cells
Frequency of dividing depends on….
- Age of organism
- Type of cell
- What the organism is eating
All living things have…?
Chromosomes
What is a chromosome number?
The unique number of chromosomes a certain species has in its cells
How many chromosomes do humans have?
46
23 pairs
What are daughter cells
The 2 new identical cells
Interphase
Resting stage where cell grows and replicates DNA
CENTRIOLES DUPLICATE THEMSELVES
Chromosomes are thread like
Where do sister chromatids connect?
At the centromere
Prophase
First stage of mitosis
• centrioles move to opposite ends
• spindle fibres( protein threads) form
Metaphase
Chromatids attach to spindle fibres
Chromatids line up at equator
Anaphase
Chromatids split and move to opposite ends
Telophase
2 new nuclei form
Chromosomes become thread like again
2 new daughter cells
Membrane starts to form
Cytokinesis
Not really a stage
Splitting of cytoplasm
In plants a cell well forms in animals cell membrane is formed