What transcribes mRNA in eukaryotes?
RNA polymerase II (Pol II) is responsible for the transcription of all mRNAs, some snRNAs, siRNAs, and all miRNAs.
Where is mRNA transcribed eukaryotes?
Eukaryotic transcription is carried out in the nucleus of the cell by one of three RNA polymerases, depending on the RNA being transcribed, and proceeds in three sequential stages: Initiation. Elongation. Termination.
Where does transcription occur in a eukaryotic cell where does translation occur?
Thus, in eukaryotes, while transcription occurs in the nucleus, translation occurs in the cytoplasm.
What are the enzymes involved in eukaryotic transcription?
The following information is a detailed description of eukaryotic transcription. The transcription of RNA requires the use of three polymerase enzymes, RNA polymerase I, RNA polymerase II, and RNA polymerase III.
Which type of RNA polymerase enzyme transcribes mRNA?
Answer. Answer: RNA polymerase II (Pol II; also known as RNAP II). It transcribes protein-encoding genes into mRNA (and also the snRNA genes).
What are the functions of RNA polymerase 1 and 2 in eukaryotes?
Abstract. All eukaryotes have three different RNA polymerases (RNAPs) which transcribe different types of genes. RNA polymerase I transcribes rRNA genes, RNA polymerase II transcribes mRNA, miRNA, snRNA, and snoRNA genes, and RNA polymerase III transcribes tRNA and 5S rRNA genes.
What enzyme is responsible for transcription?
RNA polymerase is an enzyme that is responsible for copying a DNA sequence into an RNA sequence, duyring the process of transcription.
Which enzymes are used in transcription?
Transcription is carried out by an enzyme called RNA polymerase and a number of accessory proteins called transcription factors. Transcription factors can bind to specific DNA sequences called enhancer and promoter sequences in order to recruit RNA polymerase to an appropriate transcription site.
What is the role of RNA polymerase 3 in the process of transcription?
In eukaryote cells, RNA polymerase III (also called Pol III) is a protein that transcribes DNA to synthesize ribosomal 5S rRNA, tRNA and other small RNAs. The genes transcribed by RNA Pol III fall in the category of “housekeeping” genes whose expression is required in all cell types and most environmental conditions.
What does RNA polymerase 1/2 and 3 do?
RNA Polymerase I is an enzyme that transcribes ribosomal RNAs. RNA Polymerase II is an enzyme that transcribes precursors of mRNAs. RNA Polymerase III is an enzyme that transcribes tRNAs. It transcribes all rRNAs except the 5S rRNA component.
Which enzyme is involved in eukaryotic transcription?
RNA polymerase II is responsible for transcribing the overwhelming majority of eukaryotic genes. RNA polymerase III is also located in the nucleus. This polymerase transcribes a variety of structural RNAs that includes the 5S pre-rRNA, transfer pre-RNAs (pre-tRNAs), and small nuclear pre-RNAs.
What is the enzyme responsible for mRNA synthesis?
enzyme RNA polymerase II
mRNA is synthesized in the nucleus using the nucleotide sequence of DNA as a template. This process requires nucleotide triphosphates as substrates and is catalyzed by the enzyme RNA polymerase II. The process of making mRNA from DNA is called transcription, and it occurs in the nucleus.
What enzyme is responsible for transcription formation of mRNA?
Although the mRNA contains the same information, it is not an identical copy of the DNA segment, because its sequence is complementary to the DNA template. Transcription is carried out by an enzyme called RNA polymerase and a number of accessory proteins called transcription factors.
What is the name of the enzyme that is responsible for building mRNA?
RNA polymerase, an enzyme in the cell, is responsible for creating mRNA from the correct gene. RNA polymerase is similar to DNA polymerase, but it makes an RNA strand rather than a DNA strand. RNA polymerase attaches to the promoter region of a DNA helix.
What enzyme are required for transcription in eukaryotes?
Which enzyme is responsible for mRNA synthesis?
RNA polymerase (green) synthesizes RNA by following a strand of DNA. RNA polymerase is an enzyme that is responsible for copying a DNA sequence into an RNA sequence, duyring the process of transcription.