In agglutination tests, what does the clumping or aggregation of particulate antigens indicate?

Question

BlackTom AI · Accepted Answer

The question asks what clumping or aggregation of particulate antigens indicates in agglutination tests.
Option a: A failed test due to improper handling. While improper handling can cause errors, clumping is not primarily a sign of a procedural failure; it is about the interaction between antibodies and antigens, so this is not the best explanation for the observed phenomenon.
Option b: The presence of antibodies that do not match the antigens. Mismatched antibodies and antigens would typically prevent or weaken agglutination, not produce proper clumping, so this would not explain the positive aggregation signal.
Option c: The absence of antibodies in the sample. If there were no antibodies, agglutination would be unlikely to occur, so this option contradicts the observed clumping and is therefore incorrect.
Option d: The presence of specific antibodies in the sample. In agglutination assays, clumping occurs when antibodies in the sample bind to the corresponding antigens on particles, causing cross-linking and visible aggregation. This is the classic interpretation of a positive agglutination result and aligns with immunology principles of antigen–antibody interactions.
Therefore, option d accurately describes what the clumping indicates, while the other options describe scenarios that would not produce the observed agglutination pattern.

My LMS Subjects Online quiz 6

In agglutination tests, what does the clumping or aggregation of particulate antigens indicate?

View Explanation

Log in for full answers

Similar Questions

What is the primary purpose of serology in the field of clinical diagnostic microbiology?

When performing an Indirect ELISA, what does a positive result indicate?

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

Which of the following statement regarding cost is correct:

Under the assumptions used in cost-volume-profit analysis, as the activity increases:

More Practical Tools for Students Powered by AI Study Helper

Homework AI Solver

Stylized AI Paper Writer

Plagiarism Checker Assistant

Citation AI Academic Writing Tool

In-Class Translation Assistant

AI Note Generator

AI Quiz Answers

Past Exam Questions from University Test Bank

Smart Practice Assistant

Adaptive Practice

Making Your Study Simpler