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Subject :NSO    Class : Class 9

Read the given statements and select the option that correctly identifies them as true (T) and false (F) ones.
I. Downy mildew in plants is caused by fungi.
II. Chlamydomonas and Fucus are unicellular algae whereas Polysiphonia and diatoms are multicellular.
III. Virus contains both DNA and RNA as genetic material.
IV. Citrus canker is a bacterial disease that is highly contagious.


A virus has both DNA and RNA. Please correct it.

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