Question : Identify the function of plasmid DNA.
Option 1: None of the given options are correct.
Option 2: To form blood cells.
Option 3: To confer certain unique phenotypic characters to bacteria.
Option 4: To help in the formation of RNA.
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Correct Answer: To confer certain unique phenotypic characters to bacteria.
Solution : The correct option is to confer certain unique phenotypic characteristics to bacteria .
Plasmid DNA functions to confer unique phenotypic traits to bacteria. It carries non-essential genetic information, such as antibiotic resistance genes or the ability to metabolise specific compounds. These traits provide a selective advantage to bacteria in different environments and can be passed on through horizontal gene transfer, enhancing bacterial adaptability and survival.
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