Question

Question 2 Not yet answered Marked out of 2.00 p Flag question A four-year-old boy is learning to ride his bike, but falls and cuts his knee. Two days later, the wound is red and inflamed as it has become infected with the bacterium Staphylococcus aureus. Macrophages phagocytose the bacteria and present staphylococcal peptides to CD4 T cells. Which of the following molecules will be most important in antigen presentation to the CD4 T cells? Select one: O a. Beta-2-microglobulin b. CD1 c. HLA-C d. HLA-DR

Answer 1

Answer ; d) HLA - DR

Reason ; Among the listed option, the most important molecule that is essential in the antigen presentation to the CD4 T cells is the above mentioned option. These class II molecule is widely used for these presentation and its characteristics features fits for these purpose when comparing with the other molecules. Hence the above mentioned option would be the appropriate one for this question.