In recombinant DNA technology, a vector is a self-replicating segment of DNA, such as a plasmid or viral genome. T/F

Answer: True

Explanation: A vector is used to take up foreign DNA into host cell. They are used in recombinant DNA technology (for cloning) because they replicate at a high rate, have antibiotic resistant gene and genetic markers that are used for recognition. Most commonly used vectors are E. coli and smaller circular DNA.