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An artificially constructed plasmid used for cloning large genes or other DNA sequences.
[Blend of cos (sequence), sequence of DNA allowing the cosmid to form as a circle (short for cohesive ends) and plasmid.]
a large plasmid that is used as a cloning vector and is able to clone large segments of DNA
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|Noun||1.||cosmid - (genetics) a large vector that is made from a bacteriophage and used to clone genes or gene fragments|
vector - (genetics) a virus or other agent that is used to deliver DNA to a cell