First slide
Viruses, Viroids,Prions and Lichens
Question

These organisms do not have cellular organization

A. Viruses                    B. Lichens                       C. Viroids                                   D. Prions

Easy
Solution

Viruses are nucleoprotein particles. Viroids are ribonuleo particles. Prions are misfolded proteins. All are infectious and do not have cellular organization. Lichens have cellular organisatioin and made of algae and fungi.

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