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| 1. |
What is plasmids |
| Answer» A plasmid is usually a circular (sometimes linear) piece of double-stranded DNA found in bacteria that is different from bacterium’s chromosome. It carries non-essential genes that can augment a bacterium’s ability to survive in certain circumstances.For example, plasmids carry genes that enable a bacterium to metabolise a certain type of nutrient otherwise it cannot enable to conjugate. Plasmids are used for a vast variety of experiments from expressing human genes in bacterial cells to DNA sequencing. | |