SCID is defined by a lack of functional B and T cells which eliminates protection by humoral and cell-mediated immunity. Which of the following is true?
A. A genetic defect disrupts the development of the lymphocytic cell lines.
B. A genetic mutation renders the individual incapable of removing a toxic DNA metabolite from lymphocytes, which ultimately destroys them
C. Genes coding for B and T cell receptors are mutated so the cells are incapable of binding antigens.
D. All of the above describe cases of SCID.
Select your answer:
Topics:
Healthcare Systems and Settings Skin Structure, Growth & Nutrition DNA, RNA, Proteins Bones, Joints and Muscles Anatomy - Muscle Histology/NMJ/Physiology Cell Theory Pathology Endocrine Pulse Muscle Origin, Insertion, and Function Health and The Environment Bacteria & Disease Respiratory, Cardiovascular & Oncology Reproductive System Vocabulary Integumentary System: Skin Disorder Special SensesOther quiz:
Musculoskeletal System › ViewOsteocytes are…
A. Living cells on long bone
B. Non living cells on compact bone
C. Living cells on compact bone
D. Non living cells on long bone
Blood Pathology › View
A. Polycythemia Vera
B. Sickle-cell Anemia
C. Iron Deficiency Anemia
D. Eosinophilia
E. Infectious Mononucleosis