Biochemistry 2280A Lecture Notes - Xeroderma Pigmentosum, Benzene, Basal Lamina
Document Summary
Codon bias: in any organism there are preferred codons for each amino acid (codons that are used more than others, ex. E coli uses cgc and cgu for coding arginine, over using cga or cgg: this differs between organisms - humans use all fairly significantly, with cgg and. Cancer is: the leading cause of death in north america, strikes victims of all ages, will become even more prevalent as the population ages, 2 types of tumors, benign (adenoma) - can be removed surgically, malignant - metastasized. Metastasis: figure 20. 44, cancer cells move to other organs, cancer cells can break through basal lamina, and break into bloodstream and lymphatic system. Cancer is a genetic disease: susceptibility to cancer can be inherited retinoblastoma (a cancer of the eye, xeroderma pigmentosa (a cancer of the skin, some break and intestinal cancers. Dna damaging agents cause cancer: radiation: uv, x-rays, chemical mutagens.