An Increased Number of Patients Have Recently Been Diagnosed with Celiac

question 27

Multiple Choice

An increased number of patients have recently been diagnosed with celiac disease, which you may know of as gluten sensitivity (OMIM 212750) . It is a multifactorial disorder of the small intestine influenced by genes and environment, and it is characterized by malabsorption due to inflammation of the mucosa after eating wheat gluten or related proteins. It is now thought to occur in 1 out of 120 to 300 people. Genes found to be associated with it are in the HLA region of chromosome 6, namely DR3 and DQw2. Which of the following is more probable?

• A)It is an autoimmune disorder.
• B)It is caused by exposure to gluten in infancy.
• C)It has high broad-sense heritability.
• D)Its frequency varies greatly by population.
• E)It is found primarily in inbred populations.

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Definitions:

Reselling

The act of selling a product or service again, possibly after acquiring, refurbishing, or repackaging it.

Perfect Price Discrimination

A situation where a seller charges the maximum possible price for each unit consumed that each consumer is willing to pay, thus capturing the entire consumer surplus.

Consumer Surplus

The difference between the total amount that consumers are willing and able to pay for a good or service and the total amount that they actually do pay.

Market Price

The current price at which an asset or service can be bought or sold.