Severe combined immunodeficiency (SCID) is most commonly caused by:
a. chromosome 22 trisomy
b. Y-linked inherited hypermetabolism
c. X-linked inherited enzyme or receptor deficiency
d. chromosome 7 deletion
e. XXY inheritance
Answer: c. X-linked inherited enzyme or receptor deficiency
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.