Folder. Chap 17: Human evolution Review Questions Flashcards
What types of evidence are used to construct evolutionary tree diagrams?
fossils
Explain how the evolutionary tree diagram in figure 17.1 indicates that we did not descend directly from chimpanzees.
Why were there several species of Australopithecus but possibly only one of early Homo in Africa?
What is a limitation of relying on fossil evidence in describing extinct species?
Why are Neanderthal DNA sequences in the genomes of modern Europeans but not in those of modern Africans?
Why is the gene flow among Neanderthals, Denisovans, and our ancestors so complicated?
What do we know about ancient farmers and Ŏtzi the Ice Man from their DNA?
State two assumptions behind molecular evolution studies.
Which of the forces discussed in chapter 16 explains why some DNA sequences vary greatly among species, while others are highly conserved?
Why are exons highly conserved but introns not?
Describe the type of information that Y chromosome and mitochondrial DNA sequences provide, and explain why it is incomplete.
How can haplotypes provide information on genetic admixture and ancient migrations?
Name a human population that has not admixed with others.
Describe how people expanded out of Africa, while evolution continued in Africa.
Provide an example of how changing geography or climate affected human evolution.
