Please enable JavaScript.
Coggle requires JavaScript to display documents.
unit 6 bio - Coggle Diagram
unit 6 bio
-
These are altered forms of genes known as proto-oncogenes. Proto-oncogenes are responsible for promoting cell growth. When altered or mutated, they become oncogenes and then can promote tumor formation or growth. Properties of oncogenes include the following:
-
o Having a mutation in just one of the two copies of a particular proto-oncogene is enough to cause a change in cell growth and the formation of a tumor.
-
Tumor suppressor genes are genes normally present in our cells. When working properly, they control the processes of cell growth and cell death (called apoptosis). Through these processes, they can also suppress tumor development. When a tumor suppressor gene is mutated, this can lead to tumor formation or growth.
-
During cell division, the DNA in a cell makes a copy or replica of itself. During this complex process, mistakes may occur. Mismatch-repair genes are DNA repair genes that correct these naturally occurring spelling errors in the DNA. When these genes are altered or mutated, however, mismatches (mistakes) in the DNA remain. If these mistakes occur in tumor suppressor genes or proto-oncogenes, eventually this will lead to uncontrolled cell growth and tumor formation. There are other types of DNA repair genes that repair errors in DNA that occur from mutagenic agents such as large doses of radiation.
-
-
-
-
-
- prophase, - everythings ready to go the centriolide is ready to go.
metaphase, the spindle fibers attach to the chromosome.
-
-
-
Apoptosis, if a cell is too damaged it can kill the cell.
-
-
-
- prophase, - everythings ready to go the centriolide is ready to go.
metaphase, the spindle fibers attach to the chromosome.
Cell cycle checkpoints are surveillance mechanisms that monitor the order, integrity, and fidelity of the major events of the cell cycle. These include growth to the appropriate cell size, the replication and integrity of the chromosomes, and their accurate segregation at mitosis.
There at the end of G1, G2, and metaphase
These checkpoints are regulated by cyclins, gdks and tumor suppressors.
They are the things that cyclins bind to and they can deactivate or activate things with cyclins help.
any of a group of proteins active in controlling the cell cycle and in initiating DNA synthesis.
They bond to CDKs and the CDKs activiate or deactivate things.
During cytokinesis the chromosomes unwind and become a pile of very long, thin, thread-like DNA and the cell goes back to looking “normal” until mitosis begins again. It happens during telepahse.