T.O. Diener discovered a

1. free infectious RNA 2. free infectious DNA
3. infectious protein 4. bacteriophage

Subtopic:  Virus, Viroids & Prions |
 87%
From NCERT
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One of the major compounds of the cell wall of most fungi is:

1. peptidoglycan 2. cellulose
3. hemicelluloses 4. chitin
Subtopic:  Kingdom Fungi: Introduction |
 96%
From NCERT
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Both Archaebacteria and Eubacteria:

I: have a similar structure of cell wall
II: are members of Kingdom Monera

 
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect

Subtopic:  Kingdom Monera: Bacterial Classification |
 82%
From NCERT
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Which kingdom of the Five Kingdom classification system was divided into two domains in the three Domain classification system?
1. Monera
2. Protista
3. Fungi
4. Plantae
Subtopic:  Different Classification Systems |
 89%
From NCERT
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You discover a unicellular organism. You shall place this organism in Kingdom Monera and not in Kingdom Protista if the cell:
I: has non-cellulosic cell wall composed of polysaccharide and amino acids
II: has a nuclear membrane but it is not double layered

1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic:  Different Classification Systems |
 76%
From NCERT
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Consider the given two statements:
Assertion (A): Amoeba and Paramoecium are included in Kingdom Protista and not in Kingdom Animalia.
Reason (R): Unlike animals, a cell wall is present in these organisms.
 
1. Both (A) and (R) are True but (R) does not correctly explain (A).
2. (A) is False but (R) is True.
3. Both (A) and (R) ​​​​​​​are True and (R) correctly explains (A).
4. (A) is True but (R) is False.
Subtopic:  Different Classification Systems |
 51%
From NCERT
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Earlier classification systems included bacteria, blue green algae and fungi under ‘plants’. The problem with this inclusion was:
I: Bacteria and blue green algae have prokaryotic cell organization unlike other members included in ‘plants’.
II: Fungi and many bacteria are heterotrophic unlike autotrophic members included in ‘plants’.
 
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic:  Different Classification Systems |
 83%
From NCERT
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A spherical bacterium is called as:
1. Coccus
2. Bacillus
3. Vibrios
4. Spirochaete  
Subtopic:  Kingdom Monera: Bacterial Cell Structure |
 92%
From NCERT
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Citrus canker is caused by a:
1. Virus 2. Viroid
3. Prion 4. Bacterium
Subtopic:  Kingdom Monera: Bacterial Life Process |
 81%
From NCERT
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The chief producers in the oceans are:
1. Diatoms 2. Dinoflagellates
3. Euglenoids 4. Blue green algae
Subtopic:  Kingdom Protista: Chrysophytes |
 96%
From NCERT
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