Question

question 47
2 points
what type of elisa test is represented in this example?
a direct
b sandwich
c indirect

Explanation:

In a Sandwich ELISA, the antigen (blue sphere) is sandwiched between two antibodies: the capture antibody (green) immobilized on the plate and the detection antibody (red) with a label. The diagram shows the antigen between green (capture) and red (detection) antibodies, matching Sandwich ELISA. Direct ELISA uses one labeled antibody against antigen, and Indirect uses a secondary antibody. So the correct type is Sandwich.

Answer:

B. Sandwich