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Biological Classification

Previous year questions with solutions · 2000 – 2026

116Questions
35Papers covered
5.94% ↑220.8%Weightage in 2026
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’01
’02
’03
’04
’05
’06
’07
’08
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’26
Year-wise statistics questions · papers · average per paper · weightage
YearQuestionsPapersAvg / paperWeightage
20266235.94% ↑220.8%
20251111.85% ↓29.6%
2024321.52.63% ↓13.8%
20224223.05% ↑83.2%
20211111.67% ↓16.7%
20201112.00% ↓64.7%
20193135.66% ↓37.7%
20185159.09% ↑72.7%
20173135.26% ↓24.3%
20168246.96% ↓15.7%
2015924.58.26% ↓33.9%
201471712.50% ↑246.9%
20134223.60% ↓58.8%
2012924.58.74% ↑319.4%
20112212.08% ↓73.2%
2010723.57.78% ↑45.2%
20093135.36% ↓26.3%
20084147.27% ↑23.6%
20073135.88% ↓13.2%
20064146.78% ↓14.6%
20055157.94% ↑9.1%
20044147.27% ↓9.8%
20035158.06% ↓26.3%
200271710.94% ↑29.1%
20015158.47% ↑52.5%
20003135.56%

⚠ 3 of these questions are out of the current syllabus (marked on the question).

116 questions · newest paper first · page 1 of 4

1

The main criteria used for Five Kingdom Classification proposed by R.H. Whittaker (1969) included : Choose the correct answer from the options given below :

  1. A, B and E only
  2. A, B, C, D and E
  3. B, C and D only
  4. A, B, D and E only
NEET (UG) 2026
2

Match List-I with List-II.

  1. A-I, B-III, C-II
  2. A-II, B-III, C-I
  3. A-II, B-I, C-III
  4. A-III, B-II, C-I
RE-NEET (UG) 2026
3

Mad cow disease is caused by .

  1. Mycoplasma sp.
  2. prions
  3. viroids
  4. Aspergillus sp.
RE-NEET (UG) 2026
4

Match List-I with List-II.

  1. A-II, B-IV, C-I, D-III
  2. A-I, B-III, C-II, D-IV
  3. A-III, B-II, C-I, D-IV
  4. A-II, B-I, C-IV, D-III
RE-NEET (UG) 2026
5

Symbiotic associations between fungi and algae are called .

  1. chrysophytes
  2. lichens
  3. sponges
  4. mycorrhiza
RE-NEET (UG) 2026
6

Which of the following is not a prokaryote?

  1. Fungi
  2. Bacteria
  3. Blue green algae
  4. Mycoplasma
RE-NEET (UG) 2026
7

Each of the following characteristics represents a Kingdom proposed by Whittaker. Arrange the following in increasing order of complexity of body organization. Choose the correct answer from the options given below :

  1. A, C, E, D, B
  2. C, E, A, B, D
  3. A, C, E, B, D
  4. C, E, A, D, B
NEET (UG) 2025
8

Match List I with List II Choose the correct answer from the options given below:

  1. A-III, B-II, C-IV, D-I
  2. A-I, B-III, C-II, D-IV
  3. A-III, B-II, C-I, D-IV
  4. A-IV, B-III, C-II, D-I
NEET (UG) 2024
9

Which one of the following is not a criterion for classification of fungi?

  1. Morphology of mycelium
  2. Mode of nutrition
  3. Mode of spore formation
  4. Fruiting body
NEET (UG) 2024
10

Match List-I with List-II: Choose the correct answer from the options given below:

  1. A-III, B-IV, C-II, D-I
  2. A-IV, B-II, C-I, D-III
  3. A-IV, B-III, C-II, D-I
  4. A-IV, B-II, C-III, D-I
RE-NEET (UG) 2024
11

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below :

  1. Both Statement I and Statement II are correct
  2. Both Statement I and Statement II are incorrect
  3. Statement I is correct but Statement II is incorrect
  4. Statement I is incorrect but Statement II is correct
NEET (UG) 2022
12

Which of the following is a correct statement?

  1. Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera.
  2. Bacteria are exclusively heterotrophic organisms.
  3. Slime moulds are saprophytic organisms classified under Kingdom Monera.
  4. Mycoplasma have DNA, ribosome and cell wall.
NEET (UG) 2022
13

Identify the asexual reproductive structure associated with Penicillium :

  1. Zoospores
  2. Conidia
  3. Gemmules
  4. Buds
Out of syllabusNEET (UG) 2022
14

Mad cow disease in cattle and Cr Jacob disease in humans are due to infection by .

  1. Prion
  2. Bacterium
  3. Virus
  4. Viroid
NEET (UG) 2022 (Phase 2)
15

Which of the following statements is correct?

  1. Some of the organisms can fix atmospheric nitrogen in specialized cells called sheath cells
  2. Fusion of two cells is called Karyogamy
  3. Fusion of protoplasm between two motile or non-motile gametes is called plasmogamy
  4. Organisms that depend on living plants are called saprophytes
NEET (UG) 2021
16

Which of the following is correct about viroids?

  1. They have free RNA without protein coat
  2. They have DNA with protein coat
  3. They have free DNA without protein coat
  4. They have RNA with protein coat
NEET (UG) 2020
17

Which of the following statements is incorrect?

  1. Infective constituent in viruses is the protein coat
  2. Prions consist of abnormally folded proteins
  3. Viroids lack a protein coat
  4. Viruses are obligate parasites
NEET (UG) 2019
18

Which of the following statement is incorrect?

  1. Conidia are produced exogenously and ascospores endogenously.
  2. Yeasts have filamentous bodies with long thread-like hyphae.
  3. Morels and truffles are edible delicacies.
  4. Claviceps is a source of many alkaloids and LSD.
NEET (UG) 2019
19

Match Column-I with Column –II. Choose the correct answer from the options given below :

  1. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
  2. (a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
  3. (a)-(ii), (b)-(i), (c)-(iii), (d)-(iv)
  4. (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
NEET (UG) 2019
20

Which among the following is not a prokaryote?

  1. Mycobacterium
  2. Saccharomyces
  3. Oscillatoria
  4. Nostoc
NEET 2018
21

Select the wrong statement.

  1. Mushrooms belong to basidiomycetes.
  2. Cell wall is present in members of fungi and plantae.
  3. Pseudopodia are locomotory and feeding structures in sporozoans.
  4. Mitochondria are the powerhouse of the cell in all kingdoms except monera.
NEET 2018
22

After karyogamy followed by meiosis, spores are produced exogenously in

  1. Saccharomyces
  2. Neurospora
  3. Alternaria
  4. Agaricus
NEET 2018
23

Which of the following organisms are known as chief producers in the oceans?

  1. Euglenoids
  2. Cyanobacteria
  3. Dinoflagellates
  4. Diatoms
NEET 2018
24

Ciliates differ from all other protozoans in

  1. having a contractile vacuole for removing excess water
  2. having two types of nuclei
  3. using flagella for locomotion
  4. using pseudopodia for capturing prey
NEET 2018
25

Which of the following are found in extreme saline conditions?

  1. Eubacteria
  2. Cyanobacteria
  3. Mycobacteria
  4. Archaebacteria
NEET 2017
26

Viroids differ from viruses in having

  1. DNA molecules without protein coat
  2. RNA molecules with protein coat
  3. RNA molecules without protein coat
  4. DNA molecules with protein coat
NEET 2017
27

Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?

  1. Pseudomonas
  2. Mycoplasma
  3. Nostoc
  4. Bacillus
NEET 2017
28

The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals, include the

  1. methanogens
  2. eubacteria
  3. halophiles
  4. thermoacidophiles.
NEET 2016 (Phase 1)
29

Which one of the following statements is wrong?

  1. Eubacteria are also called false bacteria.
  2. Phycomycetes are also called algal fungi.
  3. Cyanobacteria are also called blue-green algae.
  4. Golden algae are also called desmids.
NEET 2016 (Phase 1)
30

Which of the following statements is wrong for viroids?

  1. They cause infections.
  2. Their RNA is of high molecular weight.
  3. They lack a protein coat.
  4. They are smaller than viruses.
NEET 2016 (Phase 1)