Furthermore, this small DNA possesses several genes, but a lesser when compared to bacterial chromosomal DNA. Side by Side Comparison – Plasmid vs Vector in Tabular FormĪ plasmid is a small circular DNA element of bacteria. Similarities Between Plasmid and Vectorĥ. Mostly, the host organism may be a bacterium such as Escherichia coli (E. Plasmids are a type of popular vectors in genetic engineering. ![]() Moreover, it should possess several qualities such as self-replication, small genome, expression within the host, bearing markers, etc. Thus, a vector is a DNA molecule that carries foreign genetic material into another cell. Hence, in order to deliver foreign DNA into the host cell, genetic engineering uses a vehicle called a vector. ![]() Therefore, it needs additional self-replicating DNA to combine with it. Most DNA fragments cannot be self-replicated in another host cell. Genetic engineering is a novel field of Biotechnology which deals with transferring of foreign DNA to selected hosts and allowing them to duplicate within the host cell. The key difference between plasmid and vector is that plasmid is a type of vector and is a circular, double-stranded extra-chromosomal DNA molecule of some bacterial species while vector is a self-replicating DNA molecule that acts as a vehicle for delivering foreign DNA into host cells.
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