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microRNA
Pronunciation
Definition 1
A type of RNA found in cells and in blood. MicroRNAs are smaller than many other types of RNA and can bind to messenger RNAs (mRNAs) to block them from making proteins. MicroRNAs are being studied in the diagnosis and treatment of cancer. Also called miRNA. (NCI Dictionary)
Definition 2
A sequence of single-stranded RNA, that is 20-25 nucleotides in length, which is transcribed from DNA but is not translated into a protein. This nucleic acid may regulate the transcription or translation of other genes. (NCI Thesaurus)
Definition 3
A sequence of single-stranded RNA which is typically 20-25 nucleotides in length and may regulate the expression of other genes. miRNAs are transcribed from DNA, but are not translated into proteins. (NCI Thesaurus/CDISC)
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