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← Bihar Board Class 12 PYQ
Biotechnology: Principles and Processes
Bihar Board Class 12 · Biology · 74 past questions
Topic
Cloning vectors and plasmids
1
Gene transfer and host cell preparation
1
Isolation and separation of DNA
1
Restriction enzymes and recognition sites
1
Transgenic organisms and applications
1
Bioreactors and downstream processing
0
Ethics and biopiracy
0
PCR and detection techniques
0
Level
Easy
1
Moderate
0
Year
2026
1
2025
2
2024
0
2023
1
2022
3
2021
1
2020
1
2019
0
2018
3
2017
0
2016
0
2015
1
1 of 74 ·
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Q70
2015
Source of Eco RI enzyme is
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