Celiac disease affects a moderate number of people worldwide. Gluten intolerance is claimed to be more widely spread and is more difficult to evaluate clinically. A recent clinical study found that even when subjects were given a strictly controlled placebo diet, they reported a worsening of the symptoms commonly reported by people complaining of gluten intolerance. This is an example of .

how people learn the sick role and behave accordingly.

Explanation:

Living with an illness poses new challenges for a person. Learning to cope with them is a long process, but understanding what is happening and acting appropriately is not easy for everyone. Many people find that taking on the role of a sick person is better than coping with the problem and feeling stronger and more prepared to deal with all that the disease entails.

answer; i believe that the correct answer is ; males are hemizygous for the x chromosome;