A) plasmid
B) sources of DNA
C) cell which receives
D) virus
Correct Answer: A
Solution :
Plasmid is extrachromosomal self replicating double stranded DNA molecule in bacteria. It is used as a vector in genetic engineering. The cell or organism which recieve the desired genes in plasmid is called host. Viruses are nucleoproteinaceous structure which consist of central core of genetic element either DNA or RNA surrounded and protected by a proteinaceous coat called capsid, made up of small units called capsomeres.
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