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  2. Transcription (biology) - Wikipedia

    en.wikipedia.org/wiki/Transcription_(biology)

    Only one of the two DNA strands serves as a template for transcription. The antisense strand of DNA is read by RNA polymerase from the 3' end to the 5' end during transcription (3' → 5'). The complementary RNA is created in the opposite direction, in the 5' → 3' direction, matching the sequence of the sense strand except switching uracil ...

  3. Termination signal - Wikipedia

    en.wikipedia.org/wiki/Termination_signal

    Overview of transcription process. Termination of transcription occurs due to termination signal. In molecular biology, a termination signal is a sequence that signals the end of transcription or translation. [1] Termination signals are found at the end of the part of the chromosome being transcribed during transcription of mRNA.

  4. Terminator (genetics) - Wikipedia

    en.wikipedia.org/wiki/Terminator_(genetics)

    In genetics, a transcription terminator is a section of nucleic acid sequence that marks the end of a gene or operon in genomic DNA during transcription.This sequence mediates transcriptional termination by providing signals in the newly synthesized transcript RNA that trigger processes which release the transcript RNA from the transcriptional complex.

  5. Eukaryotic transcription - Wikipedia

    en.wikipedia.org/wiki/Eukaryotic_transcription

    Eukaryotic Transcription. Eukaryotic transcription is the elaborate process that eukaryotic cells use to copy genetic information stored in DNA into units of transportable complementary RNA replica. [1] Gene transcription occurs in both eukaryotic and prokaryotic cells. Unlike prokaryotic RNA polymerase that initiates the transcription of all ...

  6. Transcriptional regulation - Wikipedia

    en.wikipedia.org/wiki/Transcriptional_regulation

    In molecular biology and genetics, transcriptional regulation is the means by which a cell regulates the conversion of DNA to RNA (transcription), thereby orchestrating gene activity. A single gene can be regulated in a range of ways, from altering the number of copies of RNA that are transcribed, to the temporal control of when the gene is ...

  7. Polyadenylation - Wikipedia

    en.wikipedia.org/wiki/Polyadenylation

    Typical structure of a mature eukaryotic mRNA. Polyadenylation is the addition of a poly(A) tail to an RNA transcript, typically a messenger RNA (mRNA). The poly(A) tail consists of multiple adenosine monophosphates; in other words, it is a stretch of RNA that has only adenine bases.

  8. Intrinsic termination - Wikipedia

    en.wikipedia.org/wiki/Intrinsic_termination

    Intrinsic, or rho-independent termination, is a process to signal the end of transcription and release the newly constructed RNA molecule. In bacteria such as E. coli, transcription is terminated either by a rho-dependent process or rho-independent process.

  9. Transcription-translation coupling - Wikipedia

    en.wikipedia.org/wiki/Transcription-translation...

    While it is typically used to describe biosynthesis operons of amino acids and other metabolites, programmed transcription termination that does not occur at the end of a gene was first identified in λ phage. [21] The discovery of attenuation was significant as it represented a regulatory mechanism distinct from repression.