Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETZoologyBiotechnology - Principles and Processes

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): In a simple stirred-tank bioreactor, the stirrer facilitates even mixing and oxygen availability throughout the vessel. Reason (R): The stirrer also acts as a foam control system to continuously eliminate foam generated during the process. In the light of the above statements, choose the most appro

Options

  1. ABoth Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
  2. BBoth Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
  3. CAssertion (A) is true but Reason (R) is false.
  4. DAssertion (A) is false but Reason (R) is true.

Correct answer

C. Assertion (A) is true but Reason (R) is false.

Step-by-step solution

Assertion (A) is true because in a simple stirred-tank bioreactor, the stirrer (impeller) facilitates even mixing and ensures oxygen availability throughout the vessel. Reason (R) is false because the stirrer and the foam breaker are distinct components with different functions. The stirrer mixes the contents, while a separate foam breaker is present at the top of the bioreactor to control and eliminate the foam generated during the process. Therefore, Assertion (A) is true but Reason (R) is false. Answer: Assertio

Practice Biotechnology - Principles and Processes on Quantrex Academy →

More from Biotechnology - Principles and Processes

During PCR, primers bind to the DNA strands in the __________ step. 2026Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R . Assertion A : In recombinant DNA technology, lysozyme is used for disrupting 2026Which of the following statements are not true regarding restriction endonucleases ? A. They are called molecular scissors. B. These are the enzymes responsible for restricting the 2026Which of the following statements are correct with respect to DNA separation, isolation and visualization ? A. The cutting of DNA is done by molecular scissors. B. The DNA fragment 2026Match List I with List II : List I List II A. Genetically modified organism I. Agrobacterium tumefaciens B. Thermostable DNA polymerase II. Bt cotton C. Ti plasmid III. Thermus aqu 2026In the above represented plasmid, an alien piece of DNA is inserted at EcoRI site. Which of the following strategies will be chosen to select the recombinant colonies? 2025Given below are two statements : Statement I: The DNA fragments extracted from gel electrophoresis can be used in construction of recombinant DNA. Statement II : Smaller size DNA f 2025Which of the following cannot be used for direct gene transfer? 2019 Full Biotechnology - Principles and Processes list All NEET PYQs