Multiple choice

Which of the following is used for detecting the antibodies against HIV?

  1. ELISA

  2. FISH

  3. Western blot

  4. Northern blot

  5. Southern blot
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Western blot is used to detect specific proteins, including antibodies against HIV. ELISA (A) is the initial screening test, but Western blot (C) is the confirmatory test that detects antibodies to specific HIV proteins by their molecular weight. FISH (B) is for DNA/RNA localization, Northern blot (D) detects RNA, and Southern blot (E) detects DNA.

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