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Heterocysts specialised for nitrogen fix...

Heterocysts specialised for nitrogen fixation, occur in certain

A

Nostoc

B

Polysiophonia

C

Fucus

D

Ulothrix.

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The correct Answer is:
A
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Heterocysts in Nostoc

DINESH PUBLICATION ENGLISH-KINGDOM MONERA (THE PROKARYOTES)-REVISION QUESTIONS FROM CPMPETITIVE EXAMS.
  1. Hereditary cyanobacteria reproduce asexually by (a) Single stranded DN...

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  2. Bacteria plasmid contains (a) RNA (b) RNA +Protein (c) DNA (d) ...

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  3. Heterocysts specialised for nitrogen fixation, occur in certain

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  4. Which one is a bacterial disease ?

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  5. Pili are appendages of (a) Mycoplasma (b) Bacteria (c) Viruses ...

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  6. The condition of having a single flagellum at one end of a bacterium ...

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  7. Food material can be preserved at (a) High temperature (b) Low temp...

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  8. Chemoautotrophs do not need

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  9. Genes are packaged into a bacterial chromo- some by

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  10. Bacterial protoplasm is granular to

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  11. Gram (+) and Gram (-) forms of bacteria are differentible through sta...

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  12. Plasmids is

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  13. Diphtheria is caused by

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  14. Which is a prokaryote ?

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  15. Two bacteria found to be very useful in genetic engineering experiment...

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  16. A bacterium divides every 35 minutes. If a culture containing 10^(5) c...

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  17. A few organisms are known to grow and multiply at temperatures of 100-...

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  18. Transfer of genetic information through transduction involves

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  19. DNA of Escherichia coli is

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  20. Botulism caused by Clostridium botulinum affects the

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