Prior to the Work of Li and Others,scientists Had Estimated

question 74

Multiple Choice

Prior to the work of Li and others,scientists had estimated that Homo sapiens had lived in a limited African range at about 40,000 years ago.Migration took subpopulations away from this original area.Although speciation did not occur in this time,

• A) DNA sequence data indicated that Homo sapiens subpopulations showed little natural selection of genotypes and phenotypes.
• B) None of the answer choices are correct.
• C) DNA sequence data indicated that gradualism dominated the evolutionary history of humans in the last 40,000 years.
• D) DNA sequence data showed that people from Africa, Asia, and Europe actively interbred and maintained a constant gene pool.
• E) DNA sequence data indicated a rapid adaptive radiation, leading to microevolution of the gene pools.