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B
Boyer and Reed
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C
Bollivar and Rodrigues
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D
Bacillus and Rhizobium
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Solution
The correct option is B Bollivar and Rodrigues pBR322 is a plasmid and was one of the first widely used E. coli cloning vectors. The p stands for "plasmid," and BR for "Bolivar" and "Rodriguez, the scientists who synthesized the plasmid.
So, the correct answer is 'Bollivar and Rodrigues'