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Select the correct statement regarding h...

Select the correct statement regarding heterocysts.

A

These are present in some filamentous cyanobacteria such as Nostoc and Anabaena.

B

These cells are specialisd to perform `N_(2)-`fixation.

C

These cells contain enzyme nitrogenase.

D

All of these

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The correct Answer is:
D
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NCERT FINGERTIPS-BIOLOGICAL CLASSIFICATION-Biological Classification
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  2. Given figure is of filamentous. Blue green alga Nostoc. Identify the p...

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  3. Select the correct statement regarding heterocysts.

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  4. Given figure represents the ultrastructure of a typical cyanobacterial...

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  5. bacteria oxidise various inorganic substances such as nitrates, nitrit...

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  6. In five-kingdom classification system, the kingdom that includes, the ...

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  7. are important, decomposers that cause decay and decomposition of dead ...

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  8. Select the pair consiss of plant or animal bacterial diseases.

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  9. is the most common method of reproduction in bacteria.

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  10. Mycoplasmas are classified under which of the following kingdoms?

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  11. Which one of the following is an incorrect statement regarding mycopla...

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  12. Read the following statements and select the correct option Statemen...

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  13. Which of the following statements is incorrect?

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  14. Which of the following kingdoms has no well defined boundaries?

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  15. Which of the following organisms have been placed under kingdom Protis...

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  16. Members of kingdom Protista are primarily

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  17. The kingdom Protista forms a link with kingdom

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  18. Which of the following options incorrectly distinguishes the kingdoms ...

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  19. Which of the following groups of organisms are included under chrysoph...

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  20. Chrysophytes are

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