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← Bihar Board Class 12 PYQ
Principles of Inheritance and Variation
Bihar Board Class 12 · Biology · 55 past questions
Topic
Mendel's laws and crosses
4
Chromosomal disorders and genetic syndromes
1
Sex determination and sex-linked inheritance
1
Blood groups
0
Chromosomal theory, linkage and crossing over
0
Deviations from Mendelian inheritance
0
Pedigree analysis
0
Level
Easy
4
Moderate
0
Year
2026
2
2025
2
2024
1
2023
4
2022
1
2021
2
2020
0
2019
1
2018
1
2017
1
2016
1
2015
2
4 of 55 ·
show all
Q20
2023
The F$_2$ phenotypic ratio in dihybrid cross is –
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Q21
2023
‘Genotype-Phenotype’ concept was first proposed by
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Q22
2023
“Gametes are never hybrid”, it is statement of -
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Q23
2023
Which one in the following crosses shows phenotypic ratio of 3:1 ?
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