Biological Classification — DPP 13

20 NEET questions from Biological Classification, with answers and explanations. Attempt it as a timed test to get scoring, accuracy breakdown and mistake tracking.

Attempt this test free 20 questions · 30 minutes · +80 marks
1
Bacteriophages are made of both proteins and genetic material. Their genetic material is generally-
  1. A ss DNA
  2. B ds DNA
  3. C ss RNA
  4. D ds RNA
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Correct answer: B

2
Lichens are :-
  1. A Symbiotic association between algae and fungi
  2. B Pollution indicators
  3. C Not placed in any kingdom by R.H. Whittaker
  4. D All of these are correct
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Correct answer: D

3
How many kingdoms have only heterotrophic mode of nutrition in Whittaker's classification?
  1. A 4
  2. B 3
  3. C 2
  4. D 5
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Correct answer: C

4
Penicillin is obtained from:-
  1. A Chara
  2. B Penicillium
  3. C Aspergillus
  4. D Albugo
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Correct answer: B

5
Select incorrect statement about fungi ?
  1. A The cell walls are composed of chitin and polysaccharides
  2. B These are heterotrophic organisms
  3. C They are autotrophic organism
  4. D They are absorptive in nature
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Correct answer: C

6
Which of the following releases toxins that may even kill other marine animal like fishes:
  1. A Gonyaulax
  2. B Paramecium
  3. C Euglenoids
  4. D Sporozoans
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Correct answer: A

7
Which of the following are the characters of dinoflagellates?
(i) They are planktonic golden yellow algae with soap box like structure.
(ii) They are marine red biflagellated Protista.
(iii) They appear yellow, green, brown, blue and red in colour.
(iv) They are biflagellated organisms with pellicle.
(v) They are saprophytic (or) parasitic unicellular forms.
  1. A (ii) and (iii)
  2. B (ii) and (v)
  3. C (i), (ii) and (iii)
  4. D (ii), (iv) and (v)
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Correct answer: A

8
Viruses did not find a place in classification since :-
  1. A They are not truly living.
  2. B They are obligate parasite.
  3. C They are cellular.
  4. D They are hyperparasite.
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Correct answer: A

9
Generally plant viruses are :-
  1. A Double stranded DNA viruses
  2. B Single stranded RNA viruses
  3. C Single stranded DNA viruses
  4. D Double stranded RNA viruses
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Correct answer: B

10
Choose the incorrect match:
  1. A Ascomycetes - Used in genetic work
  2. B Deuteromycetes - Rust and smut fungi
  3. C Basidiomycetes-Sex organs are generally not formed
  4. D Phycomycetes - Aquatic habitat also
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Correct answer: B

11
Why viruses did not find a place in classification?
  1. A They are obligate parasites, cannot survive without host.
  2. B Viruses are unicellular organisms so can not be included in livings.
  3. C They are not truly living because they don't have cell structure.
  4. D They can pass through the bacteria proof filter
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Correct answer: C

12
How many of the following spores are exogenous?
Zoospores, Aplanospore, Conidia, Ascospore, Basidiospore.
  1. A Four
  2. B Three
  3. C Two
  4. D One
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Correct answer: C

Conidia & Basidiospores
13
The subunit of capsid is called
  1. A Core
  2. B Nucleotide
  3. C Amino acid
  4. D Capsomere
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Correct answer: D

14
How many organisms in the list given below are of ascomycetes?
Aspergillus, Rhizopus, Yeast, Claviceps, Morels, Agaricus, Trichoderma, Puccinia
  1. A Six
  2. B Three
  3. C Four
  4. D Five
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Correct answer: C

Aspergillus, Yeast, Claviceps, morels are Ascomycetes
15
Which of the following is false about Ascomycetes?
  1. A Mode of nutrition saprophytic, decomposer, coprophilous and parasitic.
  2. B Includes unicellular (eg. Yeast) and multicellular forms.
  3. C Mycelium is coenocytic.
  4. D Aspergillus Claviceps, Neurospora are important members of ascomycetes.
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Correct answer: C

16
Based upon the modes of nutrition protists are grouped into :-
  1. A Plant-like protists (algae) and ingestive animal-like protists (protozoa) and absorptive, fungus like protists.
  2. B Chrysophytes, Dinoflagellates and euglenoids only.
  3. C Slime moulds and fungi only.
  4. D Flagellated protozoans and protozoans only
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Correct answer: A

17
Which group of organisms is responsible for the production of biogas from the dung of cows and buffaloes?
  1. A Methanomonas
  2. B Methanogens
  3. C Cyanobacteria
  4. D Mycoplasma
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Correct answer: B

18
Which of the following bacteria never use oxygen in respiration?
  1. A Azotobacter
  2. B Clostridium botulinum
  3. C Acetobacter aceti
  4. D Clostridium tetani
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Correct answer: B

19
Find out the incorrect statement from the followings: -
  1. A Heterotrophic bacteria are most abundant in nature.
  2. B Bacterial structure is very complex and they have very simple behaviour.
  3. C Bacteria reproduce mainly by fission.
  4. D Archaebacteria differ from other bacteria in having different cell wall structure.
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Correct answer: B

20
Which of the following eukaryotes are devoid of histone proteins ?
  1. A Golden algae
  2. B Euglenoids
  3. C Fire algae
  4. D Slime Mould
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Correct answer: C

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