Cell Cycle
How many stages are there in the cell cycle?
4
What kind of cells are produced in mitosis?
diploid
Cross-over occurs in...
Prophase I
What happens to the nuclear envelope in Prophase II?
It desintegrates
Phase that makes up centrosomes
S phase
Which cells undergo mitosis?
Somatic
What happens if something goes wrong with a cell?
Mutation
Result from this process
4 haploid cells
When the cell destroys itself
Apoptosis
The purpose of mitosis is...
Growth and replacement
Result from this process
2 haploid cells
They duplicate
Name the three phases of interphase
G1, S, G2
Protein that regulates this cycle
Cyclin
The process where genes are mixed up
Recombination
What is reformed around both sets of chromatids?
Nuclear envelope and meiotic spindle
How many cells are in the human body?
30 billion
What happens if there is one extra chromosome in #21?
Down syndrome
Where do chromosome pairs align in Metaphase I?
Metaphase plate
What granddaughter cells are formed in females?
1 egg cell and 3 polar bodies