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← Bihar Board Class 12 PYQ
Biotechnology: Principles and Processes
Bihar Board Class 12 · Biology · 74 past questions
Topic
Restriction enzymes and recognition sites
3
Isolation and separation of DNA
2
PCR and detection techniques
2
Cloning vectors and plasmids
1
Bioreactors and downstream processing
0
Ethics and biopiracy
0
Gene transfer and host cell preparation
0
Transgenic organisms and applications
0
Level
Easy
6
Moderate
2
Year
2026
7
2025
8
2024
9
2023
6
2022
11
2021
4
2020
4
2019
7
2018
11
2017
1
2016
1
2015
5
8 of 74 ·
show all
Q8
2025
Which of the following is based on the principle of antigen-antibody interaction?
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Q9
2025
When very few bacteria or viruses are present in an infected person, which technique can be used to identify…
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Q10
2025
Which enzyme links the gene to the vector?
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Q11
2025
Which of the following is the first restriction endonuclease?
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Q12
2025
In get electrophoresis, DNA fragment move towards which of the following electrodes?
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Q13
2025
Which of the following features is not required in a cloning vector?
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Q14
2025
Which enzyme is used to process a bacterial cell to obtain its DNA?
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Q15
2025
Which statement is incorrect about restriction endonuclease?
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