HumanGenetics.pptVIP

* * Human Genetics The Madness of King George III Partly as a result of the erratic behavior of King George III the American colonies decided to break away from the United Kingdom Other members of King George’s family also exhibited strange behavior with dire consequences. These included Mary Queen of Scots and her son James I, both of whom were beheaded. Because madness seems to have run in the family, it is thought to have a genetic basis Acute intermittent porphyria seems to be consistent with the symptoms exhibited by George III / 电磁脉冲阀 卸料器 除尘配件 除尘布袋 除尘器 Human Heredity Is Not Unique The genes of humans behave in the same way as genes of other organisms Of the estimated 100,000 human genes, most are identical in all humans The relatively small number of “polymorphic” genes in humans account for only part of the variability that we see between humans While each human (except for identical twins) has a unique set of genetic information, variation between humans also results from differences in the environment Politics and Genetics Because we are talking about how humans are when we are talking about human genetics, there can be lots of controversy when traits are seen as relating to race, gender or other sensitive issues This is particularly true when we start to talk about the genetics of behavior Nazis and other extreme rightwing politicians see human worth and behavior being based on genetics Communists and other extreme leftwing politicians see humans as infinitely pliable and molded by their environment, not genetics Specific Human Traits Albinism - There are a number of different types of albinism, but each is characterized by an absence of pigment from the skin, eyes and hair. Albino individuals typically have very pale white skin, light blue or pink eyes, and light blond or white hair. Albinism is a recessive trait. Baldness - Loss of hair from the scalp following puberty. A sex-influenced trait that is most commonly fully expressed (as a dominant trait)