BIOL 300 Chapter Notes - Chapter 7: Cardiovascular Disease, Pleiotropy, Senescence
Document Summary
Breakdown of dna, leading to cancer, etc. Aging: minor impairments between 30 50, like gray hair, reduced sexual performance, loss of muscle tone, unreliable memory, etc. Almost all degenerative disorders increase in frequency. Cardiovascular disease, stroke, cancer, etc. which increases death rates and general impairment. It is easy to document changes in organisms during aging, but it is hard to. All types of work, sport, and play is harder/impossible study organisms that live for a long time. Those that live for a long time is hard to see if it is aging at all. It is easier to study organisms in a practical matter. As chronological age increases, plants and animals suffer pervasive deterioration across the full range of functions and tissues. It is common to study mutants or organisms where the process is stopped but we can"t create organisms that stop aging completely. Evolutionary biology developed a program for studying biological aging of organisms.
