151
Types of RNA polymerase required in nucleus for RNA synthesis : -
- 2
- 3
- 1
- 4
AIPMT 2001
Molecular Basis of Inheritance
Previous year questions with solutions · 2000 – 2026
168Questions
35Papers covered
5.94% ↓59.9%Weightage in 2026
’00
’01
’02
’03
’04
’05
’06
’08
’09
’10
’11
’12
’13
’14
’15
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’19
’20
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’22
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’26
Year-wise statistics questions · papers · average per paper · weightage
| Year | Questions | Papers | Avg / paper | Weightage |
|---|---|---|---|---|
| 2026 | 6 | 2 | 3 | 5.94% ↓59.9% |
| 2025 | 8 | 1 | 8 | 14.81% ↑68.9% |
| 2024 | 10 | 2 | 5 | 8.77% ↓30.9% |
| 2023 | 8 | 1 | 8 | 12.70% ↑18.8% |
| 2022 | 14 | 2 | 7 | 10.69% ↓28.8% |
| 2021 | 9 | 1 | 9 | 15.00% ↑87.5% |
| 2020 | 4 | 1 | 4 | 8.00% ↓15.2% |
| 2019 | 5 | 1 | 5 | 9.43% ↓13.5% |
| 2018 | 6 | 1 | 6 | 10.91% ↑3.6% |
| 2017 | 6 | 1 | 6 | 10.53% ↑34.5% |
| 2016 | 9 | 2 | 4.5 | 7.83% ↑70.6% |
| 2015 | 5 | 2 | 2.5 | 4.59% ↓48.6% |
| 2014 | 5 | 1 | 5 | 8.93% ↑65.2% |
| 2013 | 6 | 2 | 3 | 5.41% ↓20.5% |
| 2012 | 7 | 2 | 3.5 | 6.80% ↑117.5% |
| 2011 | 3 | 2 | 1.5 | 3.12% ↓59.8% |
| 2010 | 7 | 2 | 3.5 | 7.78% ↑8.9% |
| 2009 | 4 | 1 | 4 | 7.14% ↑31% |
| 2008 | 3 | 1 | 3 | 5.45% ↓35.6% |
| 2006 | 5 | 1 | 5 | 8.47% ↓11% |
| 2005 | 6 | 1 | 6 | 9.52% ↓12.7% |
| 2004 | 6 | 1 | 6 | 10.91% ↓3.4% |
| 2003 | 7 | 1 | 7 | 11.29% ↑3.2% |
| 2002 | 7 | 1 | 7 | 10.94% ↑29.1% |
| 2001 | 5 | 1 | 5 | 8.47% ↓34.6% |
| 2000 | 7 | 1 | 7 | 12.96% |
152
A mutant strain of T4 bacteriophage, R-II, fails to lyse E. coli, but when two strains R-IIX and R-IIY are mixed, they lyse E. coli. What may be the possible reason?
- Both strains have different cistrons
- Both strains have similar cistrons
- It is not mutated
- Bacteriophage transforms into wild type
AIPMT 2001
153
Method of DNA replication in which two strands of DNA separate and synthesize new strands
- Conservative
- Non conservative
- Dispersive
- Semiconservative
AIPMT 2000
154
Which of the following is initiation codon?
- AUC
- CCU
- UAG
- AUG
AIPMT 2000
155
Anticodon occurs in:
- DNA
- r-RNA
- t-RNA
- m-RNA
AIPMT 2000
156
Length of one loop of B-DNA:
- 20 nm.
- 10 nm.
- 3.4 nm.
- 0.34 nm.
AIPMT 2000
157
In three dimensional view the molecule of t-RNA is:
- E-shaped
- L-shaped
- S-shaped
- Y-shaped
AIPMT 2000
158
Similarity in DNA and RNA:
- Both have similar sugar
- Both are genetic material
- Both have similar pyrimidine
- Both are polymer of nucleotides
AIPMT 2000
159
Which is the most important factor for continuity of a species from evolutionary point of view?
- Formation of gametes
- Synthesis of proteins
- Replication of genetic material
- None of these
AIPMT 2000