Which of the following methods allows monitoring of the progressive destruction of CD4 T cells during an HIV infection by tagging the cells with specific antibodies to CD4 surface proteins and measuring their concentrations in serum?
A)Western blot
B)ELISA
C)FACS
D)Latex beads agglutination
E)FA test on a microscope slide

Question

Quizplus · Accepted Answer

FACS (Fluorescence-activated cell sorting) is a flow cytometry technique that uses fluorescently-labeled antibodies to tag and sort cells based on their surface markers. By tagging CD4 T cells with specific antibodies, it is possible to monitor their levels in serum and track their progressive destruction during an HIV infection. Western blot is a technique for detecting specific proteins, ELISA is an assay for detecting and quantifying specific molecules in a sample, Latex beads agglutination is a method for detecting the presence of antigens or antibodies in a sample, and FA test on a microscope slide is a technique for visualizing the presence of specific antigens or antibodies using fluorescently-labeled probes.

Which of the Following Methods Allows Monitoring of the Progressive