25) What is the adult RDA for iodine?
a.45 g
b.100 g
c.150 g
d.225 g
26) Your brother Bob is a competitive body builder. His trainer suggested that he
consume 4 egg white omelets per day. Bob remembers a warning about a possible
vitamin deficiency from consuming too many egg whites and asks if he should follow
the prescribed diet. Your reply to Bob is that he should NOT
a.be concerned as long as he consumes both the yolk and whites of the eggs
b.follow the diet, since the avidin in the egg whites could bind to niacin and prevent its
absorption
c.follow the diet, since the avidin in the egg whites could bind to biotin and prevent its
absorption
d.be concerned, because, when the eggs are cooked, the avidin protein is denatured, and
thus does not pose a problem for deficiency disease
27) Which of the following is a feature of FDA regulations for genetically engineered
foods?
a.All of these foods must be specially labeled
b.All foods are required to be tested for safety
c.Only those foods for children under 5 years of age are required to be tested for safety
d.The foods are not required to be tested if their new gene simply prevents synthesis of
a protein