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

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

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Microbial Recombination and Gene Transfer
When composite transposons are formed

a small deletion occurs in the transposase gene of an IS element
an IS element integrates with another IS element with the help of a plasmid
a small deletion occurs in the transposase gene of an IS element and plasmid is integrated
two IS elements integrate into a chromosome with only a small distance separating them

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