Difference between revisions of "Transcription (biology)"
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'''Transcription''' is the biological process by which [[prokaryotic]] and [[eukaryotic]] cells generate single stranded [[RNA]] | '''Transcription''' is the biological process by which [[prokaryotic]] and [[eukaryotic]] cells generate single stranded [[RNA]] | ||
| − | through the enzymatic action of a specific isoform of [[RNA polymerase]]. It is the intermediary step in the production of [[ | + | through the enzymatic action of a specific isoform of [[RNA polymerase]]. It is the intermediary step in the production of [[proteins]], and the final step for non-protein coding RNAs. Protein coding genes are transcribed into mRNA which are then translated by the [[ribosome]] to create a nascent [[polypetide]] chain. |
Non-protein coding RNAs are transcribed from [[DNA]] for the production of ribosomal RNA, transfer RNA, and small nuclear RNAs which serve various other functions in the cell. The biochemical process for transcription is similar to [[DNA replication]] in that it requires the action of multiple enzymes to unravel double-stranded genomic DNA which allows an enzyme ([[DNA polymerase]]) to processively catalyze the formation of a complementary strand based on proper [[nucleotide]] base pairing. | Non-protein coding RNAs are transcribed from [[DNA]] for the production of ribosomal RNA, transfer RNA, and small nuclear RNAs which serve various other functions in the cell. The biochemical process for transcription is similar to [[DNA replication]] in that it requires the action of multiple enzymes to unravel double-stranded genomic DNA which allows an enzyme ([[DNA polymerase]]) to processively catalyze the formation of a complementary strand based on proper [[nucleotide]] base pairing. | ||
[[Category:Biology]] | [[Category:Biology]] | ||
Revision as of 17:48, September 16, 2007
Transcription is the biological process by which prokaryotic and eukaryotic cells generate single stranded RNA through the enzymatic action of a specific isoform of RNA polymerase. It is the intermediary step in the production of proteins, and the final step for non-protein coding RNAs. Protein coding genes are transcribed into mRNA which are then translated by the ribosome to create a nascent polypetide chain.
Non-protein coding RNAs are transcribed from DNA for the production of ribosomal RNA, transfer RNA, and small nuclear RNAs which serve various other functions in the cell. The biochemical process for transcription is similar to DNA replication in that it requires the action of multiple enzymes to unravel double-stranded genomic DNA which allows an enzyme (DNA polymerase) to processively catalyze the formation of a complementary strand based on proper nucleotide base pairing.