mRNA
RNA hairpin turns contain a termination signal that is recognized by specific proteins involved in termination of transcription. When RNA polymerase encounters this signal, it triggers the release of the RNA transcript and dissociation of the RNA polymerase from the DNA template, marking the end of transcription.
Intronsare intervening sequence of DNA; does NOT code for a protein.Exons are expressed squence of DNA; codes for a protein.
1.the RNA processing transcribed from a eukaryotic gene is precessed before leaving the nucleus to serve as messenger RNA (rRNA). intro are spliced out, and a cap and tail are added. 1.the RNA processing transcribed from a eukaryotic gene is precessed before leaving the nucleus to serve as messenger RNA (rRNA). intro are spliced out, and a cap and tail are added.
transcription
RNA polymerase reads the DNA template and synthesizes a complementary RNA strand by linking together RNA nucleotides according to the base pairing rules. RNA polymerase moves along the DNA strand in the 3' to 5' direction, synthesizing the RNA transcript in the 5' to 3' direction.
All RNA is single-stranded. Messenger RNA (mRNA), however, is a transcript of DNA.
RNA Polymerase
RNA hairpin turns contain a termination signal that is recognized by specific proteins involved in termination of transcription. When RNA polymerase encounters this signal, it triggers the release of the RNA transcript and dissociation of the RNA polymerase from the DNA template, marking the end of transcription.
Messenger RNA.
Intronsare intervening sequence of DNA; does NOT code for a protein.Exons are expressed squence of DNA; codes for a protein.
1.the RNA processing transcribed from a eukaryotic gene is precessed before leaving the nucleus to serve as messenger RNA (rRNA). intro are spliced out, and a cap and tail are added. 1.the RNA processing transcribed from a eukaryotic gene is precessed before leaving the nucleus to serve as messenger RNA (rRNA). intro are spliced out, and a cap and tail are added.
RNA polymerase is the enzyme responsible for binding to DNA and synthesizing a complementary RNA strand during transcription.
The mRNA produced by transcription is similar to a rough cut of a film that needs a bit of editing. A specialized nucleotide is added to the beggining of each mRNA molecule, which forms a cap. It helps the mRNA starand bind to a ribosome and prevents the strand from being broken down to fast. The end of the mRNA molecule gets a string of A nucleotides, called the tail, that helps the mRNA molecule exit the nucleus.
transcription
mRNA (and other RNA) molecule is built during transcription of DNA. mRNA transcript undergoes for processing to become mature. They transported to cytoplasm for the protein synthesis.
RNA polymerase reads the DNA template and synthesizes a complementary RNA strand by linking together RNA nucleotides according to the base pairing rules. RNA polymerase moves along the DNA strand in the 3' to 5' direction, synthesizing the RNA transcript in the 5' to 3' direction.
RNase (ribonuclease) is an enzyme that breaks down RNA molecules by cleaving the phosphodiester bonds that link RNA nucleotides together. It is involved in various cellular processes such as RNA degradation, RNA processing, and RNA quality control.