Which of these contains 2 nucleus one for vegetative purpose and the other for reproduction?

(1) Euglena

(2) Paramecium

(3) Chlamydomonas

(4) Spirogyra

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Nuclear material in  × 174 is

(1) ssDNA

(2) ds DNA

(3) ssRNA

(4) dsRNA

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Viral envelope contains

(1) lipids

(2) proteins

(3) carbohydrates

(4) all of these

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Which of the following is a DNA containing double shelled virus?

(1) Hepatitis A

(2) Hepatitis B

(3) Hepatitis C

(4) Hepatitis D

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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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