Researchers Have Observed That in Villages in Russian Georgia Where

question 3

Multiple Choice

Researchers have observed that in villages in Russian Georgia where people have a low-calorie diet but are not malnourished,the average life expectancy is longer.Less food intake would result in fewer free radicals from metabolism,compared to societies where individuals ate more than they required.The text explains that genes for antioxidant enzymes that destroy free radicals would be inherited.How could we test,in a practical manner,whether this longevity was genetic or a matter of chosen diet?

• A)Continue keeping records of villagers versus a control population with a normal diet until the numbers are statistically significant.
• B)Track the fate of villagers who move away to more affluent communities where people eat a better diet,or supplement the diet of a portion of the villagers over time.
• C)Conduct test-crosses to determine the life span of F₁ and F₂ generations.
• D)Examine a cell sample for developmental or homeotic genes.
• E)Take DNA samples from people and test for similarity of genes.

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Definitions:

Elisabeth Kübler-Ross

A psychiatrist known for her theory on the five stages of grief: denial, anger, bargaining, depression, and acceptance.

Laboratory Results

Data and findings derived from scientific experiments conducted in controlled environments for the purpose of research and diagnosis.

Abraham Maslow

An American psychologist known for creating Maslow's hierarchy of needs, a theory of psychological health predicated on fulfilling innate human needs.

Dying Process

The final stage of life characterized by the gradual cessation of bodily functions leading to death.