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← Bihar Board Class 12 PYQ
Molecular Basis of Inheritance
Bihar Board Class 12 · Biology · 70 past questions
Topic
DNA as genetic material and key scientists
2
Genetic code, splicing and translation
2
Recombinant DNA technology and tools
2
Structure of DNA and nucleic acids
2
Lac operon and gene regulation
1
DNA replication
0
Human Genome Project and genomics
0
NEW: Genetic code把
0
Transcription and RNA
0
Level
Easy
9
Moderate
0
Year
2026
9
2025
5
2024
9
2023
7
2022
4
2021
10
2020
3
2019
8
2018
5
2017
4
2016
3
2015
3
9 of 70 ·
show all
Q1
2026 Set A
Which of the following enzymes causes lactose to enter the bacterial cell ?
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Q2
2026 Set A
Who stated that in double stranded DNA sum of purine nitrogenous bases is equal to the sum of pyrimidine…
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Q3
2026 Set A
A typical nucleosome is composed of
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Q4
2026 Set A
What did Hershey and Chase conclude on the basis of their experiments?
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Q5
2026 Set A
What is the process of removal of introns and mutual joining of exons called?
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Q6
2026 Set A
Which of the following statements is incorrect about the genetic code ?
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Q7
2026 Set A
Who of the following scientists observed that restriction endonuclease can cut DNA strands in a particular…
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Q8
2026 Set A
Cutting DNA at a specific site is made possible by which enzyme?
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Q9
2026 Set A
The base pillar of both strands of DNA double helix is made of
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