CBSE Class 9 Answered
why viruses are called non cellular even when they have DNA?
Asked by | 24 Apr, 2008, 03:00: PM
Expert Answer
Viruses only contain nucleic acids within a protein coat. They do not contain any of the other cellular machinery to sustain life. They are only capable of survival when they enter the host cell and use the host cell to propagat themselves. So by themselves, they do not possess the cellular machinery required for survival. A cell is capable of survival using its own parts. Hence viruses are called non-cellular
Answered by | 25 Apr, 2008, 12:14: PM
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