Cell Cycle
What is G1 in the cell cycle?
Makes proteins and duplicates organelles
Interphase
What is DNA replication?
Results in two identical DNA Molecules
What are Proto-oncogenes? What happens if they are cancerous?
Promotes cell growth and division, think about the G and goes.
If cancerous uncontrollable cell division happens
What is Telomerse?
The chromosome caps (cell death occurs)
What is S phase do and stand for in the cell cycle?
Synthesis, DNA is replicated
What is Mitosis?
Separates sister chromatids so each will have a complete set of chromosomes
What is the purpose of DNA replication?
To copy original DNA strand into 2 strands of DNA
What is tumor suppressor genes? What happens if cancerous?
Tumor suppressor genes tell cells to stop dividing (think S stop)
If cancerous cell continue to divide when they are not supposed to.
What is Telomerase?
Enzymes rebuilds new telomeres (no cell death occurs)
What is G2 in the cell cycle?
Checks DNA and makes proteins for mitosis
True or False does Mitosis happen in Germinal cells
False- they happen in somatic cells
What does DNA start like?
Uncondensed- in the nucleus of the cell in G1
Called Chromatin
What is Angiogensis?
What is the difference of Benign and Malignant tumors?
Malignant- fast growing, non-capsulated, metastasize
What does the M stand for and do in the cell cycle?
M- Mitosis
Duplicated material is separated into two groups
What phase of the cell cycle does halting take place if copied DNA is problematic?
G2
What is DNA Polymerase?
Adds bases to the now single stranded DNA
What is Anchorage Dependence?
Anchorage dependence keeps things in place. (Think anchor)
Proteins sends signals to nucleus to keep the cells in place
What are the percentages of cancer causes? Environment, Viruses, and Inherited
Environmental- 80%
Viruses- 15%
Inherited- 5%
What is Cytokensis?
The cell separates into two duplicate cells
What are cells regulated by?
Proteins
What equals Semiconservative?
Each new DNA molecule is half new and half old
What is Apoptosis?
Apoptosis self destructs because the cell does not receive the right message. (Think pop)
What is contact Inhibition? What happens if they are cancerous?
Sends chemical message to prevent other cells from growing on them
[transforming growth factor beta (TGF-B)]
In cancer cells ignores message and cells "pile up" on each other