Week 5 of 22
SEPTEMBER 15 TO 18
Fiction. No real student, family or grade appears.
Who gets the test. There are never enough, so the question is which rule for choosing you could defend to the person you turned away.
Serial dilution: each step is the same fixed reduction, so ten of them get you very small very fast. It is the only practical way to get to the concentrations these assays need.
The standard curve is the thing that makes a colour mean a number. Known concentrations, measured responses, a line through them, and then you read your unknown off the line.
The sandwich: capture antibody, antigen, detection antibody, then something that produces colour. Specificity comes from the antibody only binding its target.
Dilution calculations, standard curve, model diagram.