Which of the following is an example of genetic bottleneck?
a. a small population becomes isolated from its parent gene pool
b. a large diverse gene pool undergoes a rapid decrease in size and then increases again
c. a large diverse population is separated into two distinct gene pools
d. all of these
Answer b
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Analysis of Neanderthal DNA suggests that Neanderthals and modern humans interbred in the Middle East around 100,000 years ago
Indicate whether the statement is true or false.
That evolution has occurred is a(n):
A. theory B. hypothesis C. fact D. experiment
Informed consent refers to
A. U.S. anthropologists' signed commitment to the American Anthropological Association that they will abide by the organization's laws and regulations. B. a host country's leaders' agreement that the specified research is to be carried out. C. people's agreement to take part in research after they have been fully informed about its purpose, nature, funding, procedures, and potential impact on them. D. a coercive agreement between anthropologists and study participants that characterized much of the dubious and unethical research practices of the past. E. a signed contract between anthropologists and their academic institutions regarding the potential monetary value of the data they will collect in the field and how they will safeguard it.
The distribution of a single, genetically based characteristic related to adaptation is called a:
a. thrifty gene b. genetic arbitrator c. cline d. polymorphism