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Q. No.The name of the class is based on sexual structure as the site of karyogamy and meiosis in
1. Phycomycetes and Actinomycetes
2. Deuteromycetes and Zygomycetes
3. Ascomycetes and Basidiomycetes
4. Basidiomycetes and Actinomycetes
Subtopic: Kingdom Fungi: Introduction |
81%
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In Agaricus, clamp connections and dolipore septa are shown by the hyphae of
1. Primary mycelium
2. Secondary mycelium
3. Monokaryotic mycelium
4. Coenocytic mycelium
1. Primary mycelium
2. Secondary mycelium
3. Monokaryotic mycelium
4. Coenocytic mycelium
Subtopic: Kingdom Fungi: Basidomycetes |
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Select correct statement w.r.t. mycorrhizal roots
1. They do not differ in shape from normal roots
2. Often show a wooly covering
3. Possess root cap but lack root hairs
4. Fungal partner is commonly a member of Ascomycetes
1. They do not differ in shape from normal roots
2. Often show a wooly covering
3. Possess root cap but lack root hairs
4. Fungal partner is commonly a member of Ascomycetes
Subtopic: Mycorrhiza |
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Common mycobionts and phycobionts of lichen body are respectively
1. Ascomycetes, Chlorophyceae
2. Ascomycetes, Cyanophyceae
3. Basidiomycetes, Chlorophyceae
4. Basidiomycetes, Cyanophyceae
1. Ascomycetes, Chlorophyceae
2. Ascomycetes, Cyanophyceae
3. Basidiomycetes, Chlorophyceae
4. Basidiomycetes, Cyanophyceae
Subtopic: Lichens |
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Which of the following feature is not related with virus?
1. Infectivity and host specificity
2. Presence of genetic material
3. Occurrence of certain enzymes
4. Presence of respiration
3. Occurrence of certain enzymes
4. Presence of respiration
Subtopic: Virus, Viroids & Prions |
75%
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Most of the viruses are/have
1. Enveloped nucleo-protein structure
2. Non-enveloped nucleo-protein structure
3. Infectious protein particles
4. Double stranded DNA as well as dsRNA
1. Enveloped nucleo-protein structure
2. Non-enveloped nucleo-protein structure
3. Infectious protein particles
4. Double stranded DNA as well as dsRNA
Subtopic: Virus, Viroids & Prions |
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Select incorrect statement w.r.t. T4 bacteriophages
1. Have polygonal prismatic head
2. Motile organisms
3. Six tail fibres
4. ds-DNA as the genetic material
1. Have polygonal prismatic head
2. Motile organisms
3. Six tail fibres
4. ds-DNA as the genetic material
Subtopic: Virus, Viroids & Prions |
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Subtopic: Virus, Viroids & Prions |
64%
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Infectious RNA particles without protein coat
1. Have high molecular weight
2. Were discovered by Alper
3. Known to cause disease in plants
4. More than one option is correct
1. Have high molecular weight
2. Were discovered by Alper
3. Known to cause disease in plants
4. More than one option is correct
Subtopic: Virus, Viroids & Prions |
79%
From NCERT
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Mark the odd one (w.r.t. prions)
1. CJD disease
2. Mad cow disease
3. Potato leaf roll
4. Scrapie disease
2. Mad cow disease
3. Potato leaf roll
4. Scrapie disease
Subtopic: Virus, Viroids & Prions |
73%
From NCERT
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