Extra chromosomal genetic mayerial

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Ask BioTecNikaExtra chromosomal genetic mayerial
Bense K s asked 4 weeks ago

I would like to know about extra chromosomal genetic mayerial,plasmids,and their role

1 Answers
nidhihukku Staff answered 4 weeks ago

Extrachromosomal DNA  is any DNA that is found off the chromosomes, either inside or outside the nucleus of a cell. In prokaryotes, extrachromosomal DNA are primarily found in plasmids whereas in eukaryotes extrachromosomal DNA are primarily found in organelles.Bacterial plasmids are typically short sequences, consisting of 1 kilobase (kb) to a few hundred kb segments, and contain an origin of replication which allows the plasmid to replicate independently of the bacterial chromosome.Circular bacterial plasmids are classified according to the special functions that the genes encoded on the plasmid provide like f (fertility ) plasmids , r (antibiiotic resistance )- plasmids , virulence (pathogenic)plasmids  etc.

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