ANT101H5 Lecture Notes - Lecture 7: Melanin, Red Blood Cell, Carl Linnaeus
Document Summary
Diversity seen as the result of microevolutionary forces. Small changes in allele frequencies acting on the human gene pool. Appearance of new species due to many generational changes in allele. Copying mistakes during cell division leading to new alleles through gene alteration. Chance fluctuations of the allele frequency in the gene pool of a population. Becomes important in human evolution (migration out of africa) Introduction of new genes from another population. New genes being brought into a population or leaving a population. Process by which organisms achieve a beneficial adjustment to an available environment. A single ancestral species gives rise to 2 or more descendant species. Two phylogenetically unrelated organisms develop greater similarities. Ex. primates and flying squirrels, similar bc environment not bc they share a common ancestor. Difference between micro and macro forces important for tests! Larger surface areas dissipates the most heat. Populations that live in low thermal temperatures.
