A) Bacteria
B) Extra chromosomal DNA in bacteria
C) An extrachromosomal DNA is bacterial cell which can replicate independently
D) occur in bacteria and can replicate independently
Correct Answer: C
Solution :
Plasmids were discovered by Lederberg in 1952. They are small circular, extra chromosomal or extra nuclear ds DNA molecules that are separate from main bacterial chromosome and replicate independently. These DNA segment are found yeast also.
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