| A virus seems like a totally destructive thing, killing cells without doing any good. Usually this is true, but viruses can carry useful genes from one cell to another. Genetic engineers use viruses for this reason. | ||
Useful Links |
| A virus seems like a totally destructive thing, killing cells without doing any good. Usually this is true, but viruses can carry useful genes from one cell to another. Genetic engineers use viruses for this reason. | ||
Useful Links |