Exam 19: Human Evolution

As humans have migrated across the globe, establishment of new populations have resulted in the "serial founder effect." Given what you have learned about allele frequencies and the founder effect, list the following human populations in order from the first to migrate out of Africa to the most recently established population. Population Population LO \% heterozygosity 23 91 42 15 21 86

What do the two diagrams (A and B) illustrate regarding human evolution?

What are the distinguishing features of the hominin lineage?

How does the use of fire change the nutritional challenge for humans, and how did this possibly affect human evolution?

What did Richard Wrangham hypothesize about how the use of fire shaped the course of hominin evolution?

What did the discovery of Neanderthal DNA in modern human genomes tell us about gene flow as Homo sapiens emerged from Africa?

As a result of the ecological changes that occurred in the African tropics ~ 6 million years ago, the Hominina moved on to the savanna while chimpanzees and gorillas remained in the forest. One of the early adaptations by Hominina was the evolution of bipedal locomotion. Which of the following is NOT a hypothesis for why bipedal locomotion was favored?

Briefly describe the multiregional hypothesis and the out-of-Africa hypothesis. What is the key distinction between them?

Why was the fossil evidence for interbreeding between Neanderthals and Homo sapiens inconclusive?