Question

question 23
1 pts
this diagnostic test can detect the presence of an antigen or antibody in the patient.
elisa
pcr
dda
blast

Explanation:

ELISA (Enzyme - Linked Immunosorbent Assay) is a diagnostic test that can detect the presence of antigens or antibodies. PCR (Polymerase Chain Reaction) is mainly for amplifying DNA. DDA (Direct Digital Analysis) is not a common test for antigens/antibodies in this context. BLAST (Basic Local Alignment Search Tool) is used for sequence alignment in bioinformatics, not for detecting antigens or antibodies.

Answer:

ELISA