Describe the effects of the gene-environment interaction on the Pima Indians
What will be an ideal response?
The Pimas are genetically prone to obesity, regardless of where they live. Pimas who live in Mexico have a more active lifestyle and eat a diet rich in complex carbohydrates and lower in animal fats compared to Pimas in Arizona, and thus Pimas who live in Mexico are less likely to become obese. Pimas who live in Arizona typically adopt a more sedentary lifestyle and consume a high-fat diet, and thus they are more likely to become obese. The main point is that proper diet and exercise can overcome a genetic predisposition to being overweight and can enable individuals to maintain a healthy body weight.
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During cereal production, which of the following would be added for enrichment?
a. chromium b. vitamin A c. vitamin C d. iron
One tip for avoiding measurement errors when assessing infant growth is to _____.
A. make sure the head is above the head board B. set the scale to a fraction below zero before starting C. weigh the infant nude or wearing a dry diaper D. make sure the hips and knees are bent E. measure the heel with the toes extending from the foot board
Placement of enteral feeding tubes should be confirmed using:
a. x-ray examination. b. magnetic resonance imaging. c. manual verification. d. aspirates of gastrointestinal fluids.
What defines the FDA's de minimis rule?
a. A requirement that the least toxic food additive be used on foods b. The minimum amount of a food particle that can be detected c. The minimum amount of nitrite that can be added to foods to prevent spoilage over a certain time frame d. The amount of a food additive that causes no more than a one-in-a-million lifetime risk of cancer to human beings e. The amount of a food additive that causes no more than a one-in-a-million risk of birth defects in human beings