Assertion: Viroids are different from viruses 
Reason: Viroids lack capsid but viruses posses capsid
1. Both assertion and reason are true and the reason is the correct explanation of the assertion
2. Both assertion and reason are true and the reason is not the correct explanation of the assertion 
3. The assertion is true but the reason is false 
4. Both assertion and reason are  false statements 
Subtopic:  Virus, Viroids & Prions |
 82%
From NCERT
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Assertion: Cell wall of diatoms are indestructible 
Reason: Cell wall of diatoms possesss silica 
1. If both assertion and reason are true and the reason is the correct explanation of the assertion
2. If both assertion and reason are true and the reason is not the correct explanation of the assertion 
3. If assertion is true but reason is false 
4. If both assertion and reason are  false statement 
Subtopic:  Kingdom Protista: Chrysophytes |
 94%
From NCERT
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Assertion: Viruses are obligate parasites
Reason: Viruses cannot propagate outside the host cell 
1. If both assertion and reason are true and the reason is the correct explanation of the assertion
2. If both assertion and reason are true and the reason is not the correct explanation of the assertion 
3. If assertion is true but reason is false 
4. If both assertion and reason are  false statement 
Subtopic:  Virus, Viroids & Prions |
 83%
From NCERT
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Assertion: Mycoplasma is pathogenic both to animas and plants 
Reason: These organisms lack cell wall and can survive without oxygen 
1. If both assertion and reason are true and the reason is the correct explanation of the assertion
2. If both assertion and reason are true and the reason is not the correct explanation of the assertion 
3. If assertion is true but reason is false 
4. If both assertion and reason are  false statement 
Subtopic:  Kingdom Monera: Actinomycetes & Mycoplasma |
 65%
From NCERT
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Assertion: The archaebacteria can survive in harish habitats
Reason: These bacteria contain a different cell wall structure
1. If both assertion and reason are true and the reason is the correct explanation of the assertion
2. If both assertion and reason are true and the reason is not the correct explanation of the assertion 
3. If assertion is true but reason is false 
4. If both assertion and reason are  false statement 
Subtopic:  Kingdom Monera: Introduction |
 91%
From NCERT
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Assertion: The spores of 'consumer-decomposer' protists contain spores cellulosic cell wall
Reason: These spores are dispersed by wind
1. If both assertion and reason are true and the reason is the correct explanation of the assertion
2. If both assertion and reason are true and the reason is not the correct explanation of the assertion 
3. If assertion is true but reason is false 
4. If both assertion and reason are  false statement 
Subtopic:  Kingdom Protista: Chrysophytes |
 64%
From NCERT
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Assertion: Cyanobacteria are photosynthetic blue-green algae with all prokaryotic structures
Reason: They are green due to the presence of chloroplasts
1. If both assertion and reason are true and the reason is the correct explanation of the assertion
2. If both assertion and reason are true and the reason is not the correct explanation of the assertion 
3. If assertion is true but reason is false 
4. If both assertion and reason are  false statement 
Subtopic:  Kingdom Monera: Introduction |
From NCERT
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Read the following statements with respect to natural system of classification:
(i) It was given by George Bentham  and Joseph Dalton Hooker
(ii) It was based on natural affinities among the organisms
(iii) It takes into account not only the external features but also internal features
(iv) Internal features like ultrastructure, anatomy, embryology and phytochemistry are also considered
(v) Evolution is also taken into account
How many of the above statements are correct?

1. Two
2. Four
3. Three
4. Five
Subtopic:  Kingdom Monera: Bacterial Classification |
From NCERT
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Read the following statements about viroids:
(i) These were discovered by T.O Diener 
(ii) These are of high molecular weight 
(iii) Their RNA is of low molecular weight 
(iv) May possess capsid
How many of the above statements are correct? 
1. Two 
2. One
3. Four 
4. Three
Subtopic:  Virus, Viroids & Prions |
 82%
From NCERT
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Read the following statements with respect to Basidiomycetes: 
i. Sex organs are commonly present 
ii. Plasmogamy is brought about by the fusion of two vegetative or somatic cells of different strains or genotypes 
iii. The dikaryotic structure may give rise to the basidium 
iv. Karyogamy and Meiosis take place in the basidium producing four ascospores 
v. The basidiospores are exogenously produced on the basidium 
How many of the above statements are correct? 
1. Three 
2. Four 
3. Two 
4. Five 
Subtopic:  Kingdom Fungi: Basidomycetes |
 62%
From NCERT
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