Microbial Recombination and Gene Transfer
Which of the following statement describes plasmids?

Small, circular DNA molecules that can exist independently of chromosomes commonly found in bacteria
Another name for a protoplast
A complex membrane structure that covers the chromosome of bacteria
None of these

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Microbial Recombination and Gene Transfer
The main difference between a self-transmissible and a mobilizable plasmid is that the self-transmissible plasmid

usually has a transposon inserted into it
carries genes encoding the mating apparatus
transfers both strands of the plasmid DNA
transfers antibiotic resistance genes

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