Exam 5: How Does the Evolutionary Study of Human Variation Undermine Notions of Biological Race

Gene frequencies may be altered if a given population begins to interbreed with another population of the same species. This is known as

When variations in skin color of indigenous populations of the world are plotted on a map,

The subfield of evolutionary studies that devotes attention to short-term evolutionary changes is

"Population thinking" is central to the evolutionary thinking of

Describe what it means to say that populations form a reproductive community. Use three examples from the text in your response.

The creation of a new allele for a gene when the chemistry of the DNA molecule to which it corresponds is suddenly altered is called

Discuss the role randomness plays in evolution using examples.

Variations in human skin color protect against ultraviolet radiation and impede the destruction of folic acid.

Assume that in a small population, 15 percent of the people are blue-eyed and have brown hair. Assume further that within this population, there is an adventurous group that wishes to explore the region and settle down in new territory. Of this adventurous group, 87 percent are blue-eyed and have brown hair. When they leave, the gene frequencies in the remaining population will change for blue-eyes and brown hair in the next generation. This is an example of

A well-known example of a balanced polymorphism is

Cultural practices have not shaped the levels of pigmentation in human populations.

Species are normally subdivided into populations that are more or less scattered, that may be separated at one time, but may merge together again, and successfully reproduce, at a later time. This process is called

Much recent research has demonstrated that IQ scores are

The distribution of skin pigmentation from the poles to the equator forms a

According to Nadia Abu El-Haj, some biomedical researchers in the United States use racial groups as surrogates for individuals who consider themselves to be members of such groups. Why?

Controversies such as the one involving BiDil are best understood as

The subfield of evolutionary studies that focuses on long-term evolutionary changes is

The mutual shaping of organisms and their environments is known as

Clarence Gravlee and his colleagues carried out research in Puerto Rico, attempting to explain why darker skin pigmentation was associated with higher blood pressure. They found that Puerto Ricans with darker skins and higher socioeconomic status actually experienced higher blood pressure than other Puerto Ricans. How did they interpret this finding?

Anthropologist Clarence Gravlee and his colleagues concluded their study on high blood pressure in Puerto Rico by arguing that