3 things I learned:
- There are two kinds of genes that can result in caner. One, oncogenes, speed up the cell cycle, while, two, tumor suppressor genes, are what inhibit a defective cell from continuing on in the cell cycle, and are the “brakes” of the cycle.
- Oncogenes and tumor supressor genes are spread throughout the various chromosomes and when they mutate they can cause proliferation of the cell and lead to mutated genes, which cause cancer.
- Tumor suppressor genes are recessive and require 2 to result in a loss of function. Proto-oncogenes are dominant and require 1 allele to be mutated to result in an overdrive of function.
Two things that surprised/interested me:
- I was pretty surprised that the number of genome errors were low. I definitely expected the number of errors to be much higher.
- It was also interesting to me that there are very little maintenance genes in human chromosomes.
One question I still have:
- Why is it that there sometimes three components, while most genes only have to parts?