Class XII · Biology practice
Biotechnology Principles and Processes MCQs
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535 questions in this collection · Page 10 of 54
Question 91 of 535
📘 CLASS XII
Biotechnology Principles And Processes
If cells are spread on agar plates containing ampicillin, only transformants will grow, and the ampicillin resistance gene acts as a _________.
The antibiotic resistance gene acts as a selectable marker.
Question 92 of 535
📘 CLASS XII
Biotechnology Principles And Processes
If any protein encoding gene is expressed in a heterologous host, it is called a _________ protein.
A protein encoding gene expressed in a heterologous host is called a recombinant protein.
Question 93 of 535
📘 CLASS XII
Biotechnology Principles And Processes
In a continuous culture system, cells are maintained in their physiologically most active _________ phase to produce a larger biomass.
Maintaining cells in the log/exponential phase produces a larger biomass leading to higher yields.
Question 94 of 535
📘 CLASS XII
Biotechnology Principles And Processes
Bioreactors were developed to process large volumes of culture, typically between _________ litres.
Bioreactors process large volumes (100-1000 litres).
Question 95 of 535
📘 CLASS XII
Biotechnology Principles And Processes
A bioreactor provides optimal growth conditions by controlling temperature, pH, substrate, salts, vitamins, and _________.
Optimal growth conditions provided include oxygen availability.
Question 96 of 535
📘 CLASS XII
Biotechnology Principles And Processes
The most commonly used bioreactors are of the _________ type.
The most commonly used bioreactors are of stirring type.
Question 97 of 535
📘 CLASS XII
Biotechnology Principles And Processes
The stirrer in a bioreactor facilitates even mixing and _________ availability throughout the vessel.
The stirrer facilitates even mixing and oxygen availability.
Question 98 of 535
📘 CLASS XII
Biotechnology Principles And Processes
After the biosynthetic stage, the processes including separation and purification are collectively referred to as _________.
Separation and purification processes are collectively referred to as downstream processing.
Question 99 of 535
📘 CLASS XII
Biotechnology Principles And Processes
During downstream processing, the product has to be formulated with suitable _________.
The product has to be formulated with suitable preservatives.
Question 100 of 535
📘 CLASS XII
Biotechnology Principles And Processes
Formulations intended as drugs must undergo thorough _________.
Such formulation has to undergo thorough clinical trials as in case of drugs.
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