Biological Classification
Previous year questions with solutions · 2000 – 2026
116Questions
35Papers covered
5.94% ↑220.8%Weightage in 2026
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Year-wise statistics questions · papers · average per paper · weightage
| Year | Questions | Papers | Avg / paper | Weightage |
|---|
| 2026 | 6 | 2 | 3 | 5.94% ↑220.8% |
| 2025 | 1 | 1 | 1 | 1.85% ↓29.6% |
| 2024 | 3 | 2 | 1.5 | 2.63% ↓13.8% |
| 2022 | 4 | 2 | 2 | 3.05% ↑83.2% |
| 2021 | 1 | 1 | 1 | 1.67% ↓16.7% |
| 2020 | 1 | 1 | 1 | 2.00% ↓64.7% |
| 2019 | 3 | 1 | 3 | 5.66% ↓37.7% |
| 2018 | 5 | 1 | 5 | 9.09% ↑72.7% |
| 2017 | 3 | 1 | 3 | 5.26% ↓24.3% |
| 2016 | 8 | 2 | 4 | 6.96% ↓15.7% |
| 2015 | 9 | 2 | 4.5 | 8.26% ↓33.9% |
| 2014 | 7 | 1 | 7 | 12.50% ↑246.9% |
| 2013 | 4 | 2 | 2 | 3.60% ↓58.8% |
| 2012 | 9 | 2 | 4.5 | 8.74% ↑319.4% |
| 2011 | 2 | 2 | 1 | 2.08% ↓73.2% |
| 2010 | 7 | 2 | 3.5 | 7.78% ↑45.2% |
| 2009 | 3 | 1 | 3 | 5.36% ↓26.3% |
| 2008 | 4 | 1 | 4 | 7.27% ↑23.6% |
| 2007 | 3 | 1 | 3 | 5.88% ↓13.2% |
| 2006 | 4 | 1 | 4 | 6.78% ↓14.6% |
| 2005 | 5 | 1 | 5 | 7.94% ↑9.1% |
| 2004 | 4 | 1 | 4 | 7.27% ↓9.8% |
| 2003 | 5 | 1 | 5 | 8.06% ↓26.3% |
| 2002 | 7 | 1 | 7 | 10.94% ↑29.1% |
| 2001 | 5 | 1 | 5 | 8.47% ↑52.5% |
| 2000 | 3 | 1 | 3 | 5.56% |
⚠ 3 of these questions are out of the current syllabus (marked on the question).
31
Which statement is correct for bacterial transduction?
- Transfer of some genes from one bacterium to another bacterium through virus.
- Transfer of genes from one bacterium to another bacterium by conjugation.
- Bacterium obtained its DNA directly from mother cell.
- Bacterium obtained DNA from other external source.
AIPMT 2002
32
Organisms which obtain energy by the oxidation of reduced inorganic compounds are called
- photoautotrophs
- chemoautotrophs
- saprozoic
- coproheterotrophs
AIPMT 2002
33
What is true for cyanobacteria?
- Oxygenic with nitrogenase
- Oxygenic without nitrogenase
- Non-oxygenic with nitrogenase
- Non-oxygenic without nitrogenase
AIPMT 2001
34
What is true for archaebacteria?
- All halophiles
- All photosynthetics
- All fossils
- Oldest living beings
AIPMT 2001
35
What is true for photolithotrophs?
- Obtain energy from radiations and hydrogen from organic compounds
- Obtain energy from radiations and hydrogen from inorganic compounds
- Obtain energy from organic compounds
- Obtain energy from inorganic compounds
AIPMT 2001
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