Multiple choice

Match List-I with List-II and give the correct answer from the code given below : List-I (Discoverer) List-II (Discoveries) (a) Jenner 1. Blood grouping (b) Watson 2. Penicillin (c) Landsteiner 3. Vaccination (d) Flemming 4. Double helix

  1. (a) 3 (b) 1 (c) 2 (d) 4

  2. (a) 3 (b) 4 (c) 2 (d) 1

  3. (a) 3 (b) 4 (c) 1 (d) 2

  4. (a) 3 (b) 2 (c) 4 (d) 1
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Edward Jenner developed the first smallpox vaccine (3). James Watson and Francis Crick discovered the DNA double helix structure (4). Karl Landsteiner discovered the ABO blood grouping system (1). Alexander Fleming discovered penicillin (2). The correct matching is therefore: Jenner-3, Watson-4, Landsteiner-1, Fleming-2, which corresponds to option C.

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