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Read the following symptoms:- * Mosai...

Read the following symptoms:-
* Mosaic formation
* Leaf rolling and curling
* Yellowing and vein clearing
* Dwarfing
Above symptoms are due to infection of

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The correct Answer is:
Viruses
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ALLEN-DIVERSITY OF THE LIVING WORLD-Exercise
  1. Identify the following figure with A,B,C and D

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  2. Who called contagium vivum fluidum and what does it stand for?

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  3. Read the following symptoms:- * Mosaic formation * Leaf rolling a...

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  4. Identify the following figure A & B:-

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  5. Who said that viruses are smaller than bacteria?

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  6. In lichens, the algal component is known as (A) and the fungal compone...

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  7. Identify the infections agent on the basis of give information- * Di...

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  8. The causative agent of potato spindle tuber disease is composed of

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  9. Identity the group of organisms, on the basis of given informations * ...

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  10. In lichens(A)prepare food for (B) and fungi provide shelter and absorb...

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  11. Which taxonomy is based on following points- * chromosome number *...

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  12. Match the column I with Column II:- {:("Column I","Column II"),((A)"...

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  13. Identify A,B,C and D in given flow chart:-

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  14. Numerical taxonomy which is now easily carried out using computers is ...

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  15. Which type of sexual reproduction is found in fucus?

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  16. Identify the given figure with A,B,C & D:- .

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  17. Identify the given figures A,B,C:-

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  18. Write down the algal class of following figures

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  19. Study the followig table and identify (i) (ii) & (iii):-

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  20. Poophyra & dictyota are belonged to which algal class respectively

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