#Question id: 2003

#Section 2: General Biology

The number of MHC protein combinations possible in a given population is enormous. However, an individual in that population has only a couple of MHC possibilities. Why?

#Question id: 2004

#Section 2: General Biology

A bone marrow transplant may not be appropriate from a given donor (Jane) to a given recipient (Janeʹs cousin Bob), even though Jane has previously given blood for one of Bobʹs needed transfusions. Which of the following might account for this?

#Question id: 2005

#Section 2: General Biology

A transfusion of type A blood given to a person who has type O blood would result in which of the following?

#Question id: 2006

#Section 2: General Biology

In Cases 1 and 2 in the table, the mothers would be able, if needed, to supply blood to the newborn even 7-9 months after birth; the same would not be true for Case 3. Why?

#Question id: 2008

#Section 2: General Biology

An immune response to a tissue graft will differ from an immune response to a bacterium because

#Question id: 2009

#Section 2: General Biology

A child is diagnosed with DiGeorge syndrome (DGS). With which of the following would the child have serious immunological problems?