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a collection of plasmids or phages containing a representative sample of cDNA or genomic fragments that are constructed in such a way that they will be transcribed and translated by the host organism (usually bacteria).
1. the aspect or appearance of the face as determined by the physical or emotional state.
2. the act of squeezing out or evacuating by pressure.
3. the manifestation of a heritable trait in an individual carrying the gene or genes which determine it.
a number of different DNA molecules cloned into a single expression vector.
a cloning vector that carries a gene into the host cell and promotes its expression.