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Biological Classification

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Advanced Botany

Plant Growth and Development
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Ecosystem
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Environmental Issues
Microbes in Human Welfare
Strategies for Enhancement in Food Production
Molecular Basis of Inheritance
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Cell-The Unit of Life
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Plant Kingdom
Biological Classification
  1. Which one of the following statements about viruses is correct?
    1. Nucleic acid of viruses is known as capsid
    2. Viruses possess their own metabolic system
    3. All viruses contain both RNA and DNA
    4. Viruses are obligate parasites
Correct Option: D

Virus is a nucleoprotein entity which becomes active only inside a living cells utilizing the latter machinery for multiplication. Capsid is the protein covering the genetic material.


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