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:
Blood Groups ESR (RBC sed rate) Anatomy - Muscle Contraction and Growth Nasal Polyp Measles and Hib Forensic Pathology Oxygenation Arteries Microbiology Introduction to Mycology Psychopathology Cell Vocabulary Respiratory Diseases Blood Pathology The Cell Cycle & CancerOther quiz:
Pharmacology › ViewWhich of the following statements is true regarding Rohypnol?
A. It is not approved for use in the United States
B. It is used to counteract effects of cocaine withdrawal
C. It is used as a date-rape drug.
D. All of the above.
Musculoskeletal › View
When in plank position, muscles are contracting…
A. Concentrically
B. Eccentrically
C. Isotonically
D. Isometrically