Which are lines of evidence supporting the Out-of-Africa hypothesis? (select all that are true) A. The finding of more mitochondrial DNA sequence diversity in African populations than in other populations. B. The finding that African lineages form the basal branches in the mitochondrial phylogeny for humans; all non-Africans form a clade nested within the African lineages. C. The demonstration that Homo sapiens arose directly from Homo erectus in Asia. D. The calculation that "mitochondrial Eve" lived only about 200,000 years ago. E. The finding of a close relationship between mitochondrial DNA of Homo sapiens and Homo neanderthalensis.
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Which of the following is not evidence supporting the Out of Africa hypothesis? Lower mean heterozygosity in populations further away from Africa: Higher genetic variation in mutualistic and parasitic species associated with humans in Africa. Signals of introgression from Denisovans and Neanderthals found in modern Melanesian, European, and East Asian populations. Estimates of the "Mitochondrial Eve", which date to approximately 125,000 years ago. What aspect of cultural evolution would likely have the biggest impact on genetic evolution? Marriage customs Elder care customs Music fads The evolution of different sports Education Humans have evolved a preference for salt. The overconsumption of salt in the US is an example of what kind of evolutionary medicine problem? Trade-off constraints in the evolution of human bodies A mutation-selection balance Antagonistic pleiotropy A mismatch between the modern and ancestral environments An evolving disease agent
Md.Daniyal A.
The out-of-Africa hypothesis states that (a) all new species of hominins arose in Africa and then migrated to the rest of the world. (b) many new species of hominins arose outside of Africa and then migrated back to Africa later. (c) all hominin speciation events occurred outside of Africa. (d) all speciation events occurred in Africa, but only Homo sapiens distributed itself across the globe.
Which of the following pieces of evidence illustrates evolution as an ongoing process? a. Some genes from the bacterium E. coli have sequences that are similar to genes found in humans. b. Marsupial mammals live in just a few places in the world today-Australia, South America, and part of North America. c. The fossil record shows that Rodhocetus, an aquatic mammal related to whales, had a type of ankle bone that is otherwise unique to a group of land animals. d. In the 1940s, infections by the bacterium Staphylococcus aureus could be treated with penicillin; today populations exist that are completely resistant.
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