NEET UG 2020 · Zoology · Question 78
NEET 2020 Zoology, question 78
Question 78 of the NEET 2020 paper (code E1) is a Zoology question from Biotechnology: Principles and Processes. Its idea, Origin of Replication (ori), was asked 4 times, in 2020, 2024 and 2026, across NEET 2017–2026. The NTA final answer key gives option 2.
Updated 2026-10-08
Q78 · Zoology
The sequence that controls the copy number of the linked DNA in the vector, is termed :
- 1Selectable marker
- 2Ori siteOfficial answer
- 3Palindromic sequence
- 4Recognition site
Official answer: option 2 · NTA final answer key
Same idea
Origin of Replication (ori), in other papers
NEET asked this idea 4 times, in 2020, 2024 and 2026. The other 3 questions below.
- 2026 Q180Match List-I with List-II. List-I | List-II A. Transformation | I. Restriction enzyme B. Cloning site | II. Transfer DNA to host bacteria…Match the lists · Easy
- 2024 Q133What is the fate of a piece of DNA carrying only gene of interest which is transferred into an alien organism? A. The piece of DNA would…Other · Medium
- 2024 Q169The following diagram showing restriction sites in E.coli cloning vector pBR322. Find the role of 'X' and 'Y' genes:Figure-based · Medium
Origin of Replication (ori): every question and how it was framed
The chapter
Biotechnology: Principles and Processes in ten years of NEET
46 questions from 2017–2026, asked in 10 of 10 papers, about 4.4 a paper. Cloning Vectors alone had 18.