Multiple choice

Antiserum contains _____.

  1. Antigens

  2. Leucocytes

  3. Antibodies

  4. None of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Antiserum is blood serum containing polyclonal antibodies against specific antigens, produced by immunizing animals. It provides passive immunity. Antigens are what trigger antibody production, not what antiserum contains. Leucocytes (white blood cells) are cellular, not serum components.