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Does RNA polymerase require a primer for transcription?
No, RNA polymerase does not require a primer for transcription.
Does RNA polymerase require primers to initiate transcription?
No, RNA polymerase does not require primers to initiate transcription.
Does transcription require RNA polymerase for the synthesis of RNA molecules?
Yes, transcription requires RNA polymerase for the synthesis of RNA molecules.
Why doesn't RNA polymerase require a primer for transcription?
RNA polymerase does not require a primer for transcription because it can initiate the process on its own by recognizing specific DNA sequences called promoters. This allows RNA polymerase to bind to the DNA and start synthesizing RNA without the need for a primer like DNA polymerase does during DNA replication.
Does RNA polymerase require helicase for its function?
No, RNA polymerase does not require helicase for its function. RNA polymerase is responsible for synthesizing RNA from a DNA template, while helicase is an enzyme that unwinds the DNA double helix during processes like DNA replication and transcription.
Does RNA polymerase require a primer for transcription?
No, RNA polymerase does not require a primer for transcription.
Does RNA polymerase require primers to initiate transcription?
No, RNA polymerase does not require primers to initiate transcription.
Does transcription require RNA polymerase for the synthesis of RNA molecules?
Yes, transcription requires RNA polymerase for the synthesis of RNA molecules.
What enzyme does transcription require?
Transcription requires the enzyme RNA polymerase. This enzyme synthesizes RNA by reading the DNA template strand and adding complementary RNA nucleotides, facilitating the formation of an RNA strand. In eukaryotes, multiple types of RNA polymerase exist, with RNA polymerase II being responsible for synthesizing messenger RNA (mRNA).
What causes transcription to terminate normally?
Transcription normally terminates when RNA polymerase encounters specific sequences in the DNA known as terminators. In prokaryotes, these can be rho-independent sequences, which form a hairpin structure in the RNA, causing the polymerase to dissociate, or rho-dependent sequences, which require the rho protein to facilitate termination. In eukaryotes, termination often involves the cleavage of the newly synthesized RNA followed by the addition of a poly-A tail, signaling the end of transcription. These mechanisms ensure that RNA synthesis is accurately concluded, allowing for proper gene expression.
Why doesn't RNA polymerase require a primer for transcription?
RNA polymerase does not require a primer for transcription because it can initiate the process on its own by recognizing specific DNA sequences called promoters. This allows RNA polymerase to bind to the DNA and start synthesizing RNA without the need for a primer like DNA polymerase does during DNA replication.
Does initiation of transcription require a primer?
No, initiation of transcription does not require a primer. Transcription begins at the promoter region of a gene, where RNA polymerase binds and starts synthesizing a complementary RNA strand using the template DNA strand. In contrast, DNA replication requires a primer to initiate synthesis.
Does RNA polymerase require helicase for its function?
No, RNA polymerase does not require helicase for its function. RNA polymerase is responsible for synthesizing RNA from a DNA template, while helicase is an enzyme that unwinds the DNA double helix during processes like DNA replication and transcription.
Why eukaryotes need 3 RNA polymerase?
Each of the 3 RNA polymerase in eukaryotes perform a different function. For example, RNA pol 2 is involved in mRNA synthesis, RNA pol 1 synthesizes most rRNAs and RNA pol 3 synthesizes tRNNA, the 5S rRNA and other small nuclear RNAS. Eukaryotes are more complex than prokaryotes, hence why eukaryotes would require more RNA polymerases.
In addition to DNA polymerase and primers what else does a polymerase chain require?
In addition to DNA polymerase and primers, a polymerase chain reaction (PCR) requires deoxynucleotide triphosphates (dNTPs), which are the building blocks of DNA, and a buffer solution to provide the optimal pH and ionic environment for the reaction. Additionally, a thermal cycler is needed to facilitate the precise temperature changes required for denaturation, annealing, and extension during the amplification process.
Transcription?
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What happens to the chromatin?
The structure of chromatin during interphase is optimized to allow easy access of transcription and DNA repair factors to the DNA while compacting the DNA into the nucleus. The structure varies depending on the access required to the DNA. Genes that require regular access by RNA polymerase require the looser structure provided by euchromatin
