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Main Entry: plas·mid
Pronunciation: 'plaz-m&d
Function: noun
Etymology: plasma + [2]-id
Date: 1952
: an extrachromosomal ring of DNA especially of bacteria that replicates autonomously
The definition itself should answer the 2nd part of your question for you.
Sra
What are plasmids and how do they aid scientists as a biotechnology tool?
1 answer