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In plants, mosaic formation, leaf rollin...

In plants, mosaic formation, leaf rolling and curling, yellowing of plant, vein clearing, dwarging and stunted growth, necrosis etc. are the symptoms of

A

Bacterial diseases

B

mycoplasmal diseases

C

viral diseases

D

fungal diseases.

Text Solution

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The correct Answer is:
C

In plants, viruses cause disease like potato mosaic, pumpkin mosaic, apple mosaic, tulip mosaic (broken tulip), bhindi yellow vein mosaic, potato leaf roll, papaya leaf curl, banana bunchy top, tomato buncy, rice tungro, etc.
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NCERT FINGERTIPS ENGLISH-BIOLOGICAL CLASSIFICATION-Biological Classification
  1. Select the pair that consists of viral diseases. A. Mumps and small po...

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  2. Which one of the following is an incorrrect pair?

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  3. In plants, mosaic formation, leaf rolling and curling, yellowing of pl...

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  4. Which of the following is not a viral disease of plants?

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  5. Read the given statements that describe certain infectious particle. ...

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  6. Read the given statements about lichens and select the incorrect ones....

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  7. Select the incorrect statement.

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  8. Mathc the column I with column II and select the correct option from t...

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  9. Read the following statements and select the option which identifies t...

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  10. The diagram shows the structure of a fungal cell with different parts ...

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  11. Sexual reproduction in fungi is carried out by the fusion of compatibl...

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  12. Given diagram illustrates an evolutionary tree. Which of the foll...

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  13. Study the given life cycle of cellular slime moulds and select the inc...

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  14. In an experiment, common Tobacco Mosaic Virus (TMV) and its mutant str...

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  15. All eukaryotic unicellular organisms belong to 1. Monera . 2. protista...

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  16. The five kingdom classification was proposed by, 1. R.H. Whittker 2 C....

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  17. Organisms living in salty areas are called as , 1.methanogens, 2.halop...

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  18. Naked cytoplasm, multinucleated and saprophytic are the characteristic...

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  19. An association between rots of higher plants and fungi is called, 1. ...

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  20. A dikaryon is formed when, 1. meiosis arrested , 2. the two haploid ce...

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