The<unk>  is the set of all messenger RNA (mRNA) molecules, or "transcripts", produced in one or a population of cells. The term can be applied to the total set of transcripts in a given organism, or to the specific subset of transcripts present in a particular cell type. Unlike the genome, which is roughly fixed for a given cell line (excluding mutations), the<unk>  can vary with external environmental conditions. Because it includes all mRNA transcripts in the cell, the<unk>  reflects the genes that are being actively expressed at any given time, with the exception of mRNA degradation phenomena such as transcriptional attenuation. The study of<unk> cs examines the expression level of mRNAs in a given cell population, often using high-throughput techniques based on DNA microarray technology.
Transcriptome
DNA sequence
Cytome
Open reading frame
Molecular biology
Viral envelope
Microbiome
Short tandem repeat