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Biotechnology Principles and Processes MCQs
Class XII Biology
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NCERT Based
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NEET Practice
📘 Concept Based
📝 Exam Level
🤖 AI Explanations
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535 questions in this chapter
Question 251 of 535
📘 CLASS XII
RNA can be removed from the DNA preparation by treatment with the enzyme:
The RNA can be removed by treatment with ribonuclease.
Question 252 of 535
📘 CLASS XII
Proteins can be removed from the DNA preparation by treatment with the enzyme:
Proteins can be removed by treatment with protease.
Question 253 of 535
📘 CLASS XII
Purified DNA ultimately precipitates out of the suspension after the addition of chilled:
Purified DNA ultimately precipitates out after the addition of chilled ethanol.
Question 254 of 535
📘 CLASS XII
The technique used to remove the precipitated DNA, visible as fine threads in suspension, is known as:
The precipitated DNA can be removed by spooling.
Question 255 of 535
📘 CLASS XII
Agarose gel electrophoresis is employed to check the progression of which key RDT step?
Agarose gel electrophoresis is employed to check the progression of a restriction enzyme digestion.
Question 256 of 535
📘 CLASS XII
After cutting the source DNA and vector DNA, which enzyme is added to mix the cut components and prepare recombinant DNA?
Ligase is added to join the cut source DNA and the cut vector, resulting in the preparation of recombinant DNA.
Question 257 of 535
📘 CLASS XII
What is the full form of PCR?
PCR stands for Polymerase Chain Reaction.
Question 258 of 535
📘 CLASS XII
Multiple copies of the gene of interest are synthesized *in vitro* during PCR using two sets of primers and the enzyme:
DNA polymerase is the enzyme used in PCR.
Question 259 of 535
📘 CLASS XII
The segment of DNA can be amplified to approximately how many copies if the replication process in PCR is repeated many times?
The segment of DNA can be amplified to approximately billion times, i.e., 1 billion copies are made.
Question 260 of 535
📘 CLASS XII
The thermostable DNA polymerase used in PCR is isolated from the bacterium:
The thermostable DNA polymerase is isolated from a bacterium, *Thermus aquaticus*.
