ANTH 011 Lecture Notes - Lecture 15: Hemoglobin, Natural Selection, Lactase Persistence

• School: College of The Sequoias
• Department: Anthropology (ANTH)
• Course: ANTH 011
• Professor: Allen

Document Summary

Racial categories are not good description on how. Do not map the same across the globe. Human racial groups are more variable than the differences between them the differences between races are very small. More variation within populations than between populations. Many human traits vary clinally shaped by natural selection across. We look at other modern human triats that are shaped by natural selection environmental gradients. People who have expression of this gene has a hemoglobin molecule that have a different shape. When individuals have full blow sickle cell anemia they have a lot of issues with their fitness and pain associated. Hbs hbs homozygous sickle cell variant sca. Will have full blown sickle cell anemia all their red blood cells will be sickle. Need both parents to have for the child to get. Sc trait some sickling occurs in low oxygen situations.