Multiple Choice
Severe combined immunodeficiencies (SCIDs) are due to
A) autoantibodies.
B) failure of B-cell development and maturity.
C) congenital absence or immaturity of the thymus gland.
D) delayed hypersensitivity.
E) a genetic defect in the development of both T cells and B cells.
Correct Answer:

Verified
Correct Answer:
Verified
Q7: In systemic lupus erythematosis (called lupus), complexes
Q9: Serum sickness and the Arthus reaction are
Q10: Large quantities of antibodies that react to
Q13: Predict why insect stings and medication injections
Q14: The chemical mediator that causes prolonged bronchospasm,
Q16: The leukocyte histamine-release test (LHRT) measures the
Q23: Before a type II hypersensitivity can proceed,
Q33: Which event occurs with the sensitizing dose
Q53: Which type/s of hypersensitivities is IgG is
Q54: Food allergies include gastrointestinal symptoms and often