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Viruses have :...

Viruses have :

A

DNA enclosed in a protein coat

B

Prokaryotic nucleaus

C

Single chromosome

D

Both DNA and RNA

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Viruses are

Assertion: Viruses having RNA genome can mutate faster. Reason: RNA is stable than DNA.

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Viruses are considered as non-living organisms because of

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SARAS PUBLICATION-DIVERSITY IN LIVING WORLD-EXERCISE
  1. Which of the following is responsible for peat formation?

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  2. Male gametophyte with least number of cell is present in :

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  3. Viruses have :

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  4. An alga which can be employed as food for human being is :

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  5. Which one of the following matches is correct?

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  6. Read the following statements (A to E) and select the option with all ...

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  7. How many pairs of constrasting characters in pea plants were studies b...

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  8. Which of the following represent the correct combination without any e...

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  9. Which of the following animals is not viviparous?

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  10. Which of the following viruses is not transferred through semen of an ...

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  11. Male gametophyte in angiosperms produces:

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  12. The imperfect fungi which are decomposer of litter and help in mineral...

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  13. Pick up the wrong statement

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  14. Which of the following diseases is caused by a protozoan?

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  15. Selected the wrong statement :

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  16. Body having meshwork of cells, internal cavities lined with food filte...

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  17. Chrysophytes, Euglenoids, Dinoflagellates and Slime moulds are include...

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  18. Select the correct statement:

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  19. One of the major components of cell wall of most fungi is

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  20. Which of the following would appear as the pioneer organisms on bare r...

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