This practice test consists of 25 important questions from the Biology Chapter – Biotechnology: Principles And Processes (Class 12). these questions and practice test is helpful for NEET Ug and other competitive entrance exams.
Biotechnology: Principles and Processes – Biology (Class 12th) Revision Test | MCQs for NEET
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Total: 25 Questions
Questions
Q1.
Biolistics (gene gun) is suitable for
📘 Explanation:
Biolistics (gene gun) is suitable for introducing rDNA into plant cells
Q2.
In genetic engineering experiments, restriction enzymes are used for
📘 Explanation:
In genetic engineering experiments, restriction enzymes are used for bacterial DNA
Q3.
The DNA fragments produced by the use of restriction endonucleases can be separated by
📘 Explanation:
The DNA fragments produced by the use of restriction endonucleases can be separated by gel electrophoresis
Q4.
Plasmids in bacterial cells are
📘 Explanation:
Plasmids in bacterial cells are extra-chromosomal DNA, which can . self-replicate
Q5.
The DNA polymerase enzyme used in PCR is obtained from
📘 Explanation:
The DNA polymerase enzyme used in PCR is obtained from Thermus aquaticus
Q6.
While isolating DNA from bacteria, which of the following enzymes is not used?
📘 Explanation:
Lysozyme is not used
Q7.
Significance of ‘heat shock’ method in bacterial transformation is to facilitate
📘 Explanation:
uptake of DNA through transient pores in the bacterial cell wall
Q8.
Which of the following steps are catalysed by Taq polymerase in a PCR reaction?
Q9.
Which of the given statement is correct in the context of observing DNA separated by agarose gel electrophoresis?
📘 Explanation:
Ethidium bromide stained DNA can be seen under exposure to UV light is the correct answer
Q10.
Restriction’ in Restriction enzyme refers to
📘 Explanation:
Restriction’ in Restriction enzyme refers to prevention of the multiplication of bacteriophage in bacteria
Q11.
The role of DNA ligase in the construction of a recombinant DNA molecule is
Q12.
In an experiment, recombinant DNA bearing ampicillin-resistance gene is transferred into E.coli cells. The host cells are then cultured on a medium containing ampicillin. The result will be
📘 Explanation:
transformants only and not the non-transformants can survive
Q13.
DNA element with ability to change its position is called
📘 Explanation:
DNA element with ability to change its position is called Intron
Q14.
Viral genome incroporatcd into host DNA is called:
📘 Explanation:
Viral genome incroporatcd into host DNA is called Bacteriophage
Q15.
Triticale, first man made cereal crop, has been obtained by crossing wheat with:
📘 Explanation:
Triticale, first man made cereal crop, has been obtained by crossing wheat with Barley
Q16.
Golden rice is a promising transgenic crop. When released for cultivation, it will help in :
📘 Explanation:
It will help in High vitamin A content.
Q17.
Restrictipn endonucleases are most widely used in recombinant DNA technology. They are obtained from
📘 Explanation:
Restrictipn endonucleases are most widely used in recombinant DNA technology. They are obtained from Bacterial cells
Q18.
Restriction endonuclease cuts
📘 Explanation:
Restriction endonuclease cuts both strands of DNA
Q19.
Plasmid is a
📘 Explanation:
Plasmid is a extra chromosomal DNA in bacterial cell
Q20.
Two microbes found tb be very useful in Genetic Engineering are
📘 Explanation:
Excherichia coli and Agrobacterium tumefaciens are two microbes found to be very useful in Genetic Engineering
Q21.
DNA obtained for DNA finger printing:
Q22.
Who discovered Restricted endonucleas enzymes?
📘 Explanation:
Smith and Nathane discovered Restricted endonucleas enzymes
Q23.
Two microbes found to be very useful in genetic, engineering are
📘 Explanation:
Two microbes found to be very useful in genetic, engineering are Escherichiya Coli and Agrobacterium tumefaciens
Q24.
Transgenic plants are develop by
📘 Explanation:
Transgenic plants are develop by Introducing of foreign genes
Q25.
Transgenic plants are develop by
📘 Explanation:
Transgenic plants are develop by Introducing of foreign genes
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