CBSE 2023 · Region 1 · Set 1 · Q11 · 1 mark
The organism used in construction of the first artificial recombinant DNA by Cohen and Boyer in $\displaystyle 1972$ was :
Official answer
From CBSE’s own marking scheme for this paper.
(B)
Salmonella typhimurium
Biotechnology : Principles and ProcessesProcesses of Recombinant DNA TechnologyRemembermcqmedium
Practice Biotechnology : Principles and Processes →All Biotechnology : Principles and Processes questions
More from Biotechnology : Principles and Processes
- With reference to the set-ups (A, B and C) given below, of the electrophoretic separation of a mixture of DNA…2024 · asked 3×
- (i) Given below is the schematic representation of the process of electrophoresis. Identify the alphabets…2026 · asked 3×
- Assertion: The stirrer facilitates the even mixing of oxygen availability in a bioreactor. Reason (R):…2024 · asked 3×
- Amplification of gene of interest by using DNA polymerase may go upto2025 · asked 3×
- (i) Explain any two basic principles/core techniques on which biotechnology is based. (ii) Describe any three…2026 · asked 3×
- Assertion: To generate only a part of the plant from a cell is totipotency. Reason (R): Suitable special…2025 · asked 3×
- Bioreactors are the containment vehicles of any biotechnology-based production process. For large scale…2023 · asked 3×
- Assertion: DNA Ligase is used to join DNA fragments. Reason (R): It catalyses the formation of glycosidic…2026 · asked 3×
CBSE Class 12 Biology past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.