Option (3) is the answer because, Kanamycin is an antibiotic which can be used as selectable marker for E. coli. Clal is a restriction site on plasmid pBR322. Disarmed retroviruses are used to deliver genes into animal cells, which is an indirect method of gene transfer. Kanamycin R gene exhibits resistance against kanamycin which is an antibiotic.
NEET UG 2023 — Zoology Biotechnology - Principles and Processes
2023mcqeasy
Match List-I with List-II. 
Choose the correct answer from the options given below.
Official previous-year question
Held on 30 Apr 2023 · Verified 9 Jul 2026.
Options
- A
(A)−(IV),(B)−(III),(C)−(I),(D)−(II)
- B
(A)−(II),(B)−(IV),(C)−(I),(D)−(III)
- C
(A)−(II),(B)−(III),(C)−(I),(D)−(IV)
- D
(A)−(III),(B)−(I),(C)−(IV),(D)−(II)
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