Azolla increases soil fertility of

(1) maize

(2) barley

(3) rice

(4) wheat

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Saprotrophs live on dead organic matter, which they utilize

(1) by phagocytosis

(2) after digestion by extracellular enzymes synthesised by them

(3) by endocytosis

(4) by pinocytosis

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Fungal cell walls are characteristic in having

(1) cellulose

(2) hemicellulose

(3) chitin

(4) pectin

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Select the option that correctly identifies the different genera (A, B, C and D) of Kingdom Fungi shown in figure.

 

A

B

C

D

(1)

Mucor

Saccharomyces  

Morchella

Amanita

(2)

Mucor

Saccharomyces

Penicillium

Agaricus

(3)

Rhizopus

Saccharomyces

Aspergillus  

Morchella

(4)  

Aspergillus  

Rhizopus

Penicillium

Agaricus

 

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The protists have

(1) only free nucleic acid aggregates

(2) membrance bound nucleoproteins lying embedded in the cytoplasm

(3) nucleoprotein in direct contact with the rest of the cell substance

(4) none of these

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In prokaryotes, genetic recombination can occur during

(1) transduction

(2) transformation

(3) conjugation

(4) all of these

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which of the following structures helps in the respiration of lichens?

(1) Soredia

(2) Isidia

(3) Cyphella

(4) Cephalodia

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Viroids have

(1) single stranded RNA not enclosed by protein coat

(2) single stranded DNA not enclosed by protein coat

(3) double straded DNA enclosed by protein coat

(4) double stranded RNA enclosed by protein coat

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Which one of the following pairs is correctly matched?

(1)

Rhizobium      

- Parasite in the roots of leguminous plants

(2)

Mycorrhizae

- Mineral uptake from soil

(3)

Yeast

- Production of biogas

(4)  

Myxomycetes     

- The disease ring worm

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Which one of the following categories of organisms do not evolve oxygen during photosynthesis?

(1) Red algae

(2) Photosynthetic bacteria

(3) C4 plants with Kranz anatomy

(4) Blue green algae

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