McqMate
| Q. |
Which one of the following features is absent in a virus? |
| A. | reproduce within host cell |
| B. | presence of cell wall |
| C. | fully parasitic in nature |
| D. | presence of either DNA or |
| Answer» B. presence of cell wall | |
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Explanation: A virus has a simple structure. It has no internal cellular structure, no cell wall or cell membrane, just the protein coat that holds the string of nucleic acid. It is made only of a nucleic acid + a protein coat. A cell wall is a layer located outside the cell membrane found in plants, fungi, bacteria, algae, and archaea. |
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