Among rust, smut and mushroom, two of them 

(1) are pathogens

(2) are saprobes

(3) bear ascocarps

(4)  bear basidiocarps

Subtopic:  Kingdom Fungi: Basidomycetes |
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Which of the following is correct match?

 

Disease

Pathogen

(1)

Wilt disease

Synchytrium

(2)

Citrus canker

Xanthomonas

(3)

Red rot of sugarcane    

Ustilago

(4)  

Powdery mildew

Fusarium

Subtopic:  Kingdom Monera: Actinomycetes & Mycoplasma |
 71%
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Which one of the following pairs is not correctly matched?

(1)

Streptomyces     

- Antibiotic

(2)

Serratia

- Drug addiction

(3)

Spirulina

- Single cell protein

(4)  

Rhizobium     

- Biofertilizer

 65%
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The growth curve of bacterial population in lab is plotted against time. What will be the shape of graph?

(1) Sigmoid

(2) Hyperbolic

(3) Ascending straight line

(4) Descending straight line

Subtopic:  Population: Exponential Growth Model |
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The outermost limiting layer of mycoplasma is made up of

(1) cell wall

(2) cell membrane

(3) mucilaginous sheath

(4) slime layer

Subtopic:  Kingdom Monera: Actinomycetes & Mycoplasma |
 64%
From NCERT
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By all of the following ways bacteria become resistant to antibiotic except

(1) making enzymes that inactivate the drug

(2) becoming impermeable to the drug

(3) modifying the target of the drug

(4) moving away from the drug.

 55%
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Protista differs from monera in having

(1) cell wall

(2) autotrophic nutrition

(3) flagella

(4) nuclear membrane

Subtopic:  Kingdom Protista: Introduction |
 77%
From NCERT
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Which of the following is correct?

(1) All fungi are filamentous.

(2) Transfer of DNA from one bacteria to another bacteria cannot take place.

(3) Virus cannot have both DNA and RNA.

(4) Protists reproduce asexually only.

Subtopic:  Virus, Viroids & Prions |
 83%
From NCERT
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The genetic material in tobacco mosaic virus is

(1) ss DNA

(2) ss RNA

(3) ds RNA

(4) ds DNA

Subtopic:  Virus, Viroids & Prions |
 71%
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Yeast is not included in protozoans but in fungi because

(1) it has chlorophyll

(2) it shows saprotrophic mode of nutrition

(3) it has eukaryotic organisation

(4) cell wall is made up of cellulose and reserve food material as starch.

Subtopic:  Kingdom Fungi: Ascomycetes |
 65%
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