Question Detail

BIO 201 Objective Question

Question

What is the definition of the 'matrix effect' in diagnostic immunoassay validation?
Options
A Interference caused by non-analyte components in the biological sample matrix affecting target measurement
Correct Answer
B The structural collapse of microtiter plates during incubation
C The binding of secondary antibodies to the microplate plastic substrate
D Cross-reactivity caused exclusively by homologous genomic sequences
Correct Answer

Option A is the correct answer.

Detailed Explanation

Matrix effects occur when proteins, lipids, or endogenous substances within serum/plasma alter the binding kinetics of the target analyte to test antibodies.

Hint

No hint available

Question Info