Chapter 19 discusses genetic transfers in eukaryotes, after discussing it in viruses and bacteria. It's useful stuff if you want to get into it, but mostly drastically more detailed discussion of what's been covered already. I'm skipping that part, but try to keep in mind that the processes are very complex -- essentially, try to know what you don't know.
This is long and complex, but it shows you a lot (12)
shorter version (4)
cancer (12)
Quiz, pp. 368 -- 372
1. Mutations that alter genes that regulate cell g____ ad d__________ in s___________ cells can lead to cancer. What are somatic cells, again?
2. Can this kind of cancer-causing gene alteration be due to a random mutation?
3. Name three things that are likely to trigger a mutation that leads to cancer.
4. Mutations might create a genetic fault that makes the cells divide or grow more (often creating tumors), or they might create a fault in the genes that are supposed to limit growth -- t___-s_______ genes.
5. Carefully red the section on page 369 titled "Cancer results from genetic changes that affect the cell cycle".
6. (371) Full cancer often happens only after about 6 m____________; often you need a m________ that provokes growth along with a m_____________ blocks t_________ suppression, and then also a m_________ that affects telomerase (remember the caps on the ends of chromosomes that get shorter and shorter over time, with each division, so that the number of times a cell line can divide is limited).
7. How does the idea that you need many mutations to have full cancer explain why cancer "runs in the family" for some people?
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