In prokaryotes, chromatophores are

(1) specialized granules responsible for colouration of cells

(2) structures responsbile for organizing the shape of the organism

(3) inclusion bodies lying free inside the cells for carrying out various metabolic activities

(4) internal membrane systems that may become extensive and complex in photosynthetic bacteria

Subtopic:  Kingdom Monera: Blue Green Algae |
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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 |
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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

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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 |
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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.

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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 |
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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 |
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Kingdom Animalia is characterised by

(1) direct dependence on autotrophs

(2) indirect dependence on autotrophs

(3) absence of chlorophyll

(4) absence of cell wall

Subtopic:  Different Classification Systems |
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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 |
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