0
What else can I help you with?
What is synthesized by RNA polymerase?
Polymerases are the enzymes that replicate and build nucleic acids. DNA polymerases synthesize DNA, RNA polymerases synthesize RNA. Purified polymerases are essential to carrying out the PCR reaction.
Are promoters signals in RNA that indicate RNA polymerase when to begin transcription?
Yes, promoters are specific sequences in DNA that signal RNA polymerase where to bind and start transcription of a gene into RNA. Promoters contain regions recognized by RNA polymerase, which initiate the transcription process.
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.
What enzyme reads the DNA template?
Various DNA polymerases read the DNA template during replication of DNA. Various RNA polymerases read the DNA template during transcription.
What are promoters made of?
Promoters are made of DNA sequences that are typically located upstream of a gene. These sequences contain specific binding sites for transcription factors, which help regulate the initiation of gene transcription by RNA polymerase. Promoters play a critical role in gene expression by controlling when and how much of a gene is transcribed into RNA.
Repressors block binding of RNA polymerases by attaching to?
PROMOTERS
What might geneticists learn about genes by studying RNA?
Molecular biologists have found that certain DNA sequences serve as promoters, bindings sites for RNA polymerases serve as starts and stops signals for transcription.
What is synthesized by RNA polymerase?
Polymerases are the enzymes that replicate and build nucleic acids. DNA polymerases synthesize DNA, RNA polymerases synthesize RNA. Purified polymerases are essential to carrying out the PCR reaction.
What enzyeme helps a cell to make a strand of rna?
RNA polymerase is the enzyme responsible for synthesizing RNA strands during transcription in a cell. It reads the DNA template strand and adds complementary RNA nucleotides to form an RNA strand.
Are promoters signals in RNA that indicate RNA polymerase when to begin transcription?
Yes, promoters are specific sequences in DNA that signal RNA polymerase where to bind and start transcription of a gene into RNA. Promoters contain regions recognized by RNA polymerase, which initiate the transcription process.
RNA polymerases are transcripted by which enzyme?
You seem confused. RNA polymerase is the enzyme that transcribes DNA into pre mRNA. So, the enzyme would transcribe the messenger RNA for its own protein construction.
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.
What is RNA polymerase and what is its job?
The RNA polymerases are huge multi-subunit protein complexes. Three kinds are found in eukaryotes: * RNA polymerase I (Pol I).It transcribes the rRNA genes for the precursor of the 28S, 18S, and 5.8S molecules (and is the busiest of the RNA polymerases). * RNA polymerase II (Pol II; also known as RNAP II).It transcribes protein-encoding genes into mRNA (and also the snRNA genes). * RNA polymerase III (Pol III).It transcribes the 5S rRNA genes and all the tRNAgenes.
What is the role of promoters in transcription control?
Promoters are regions of DNA that provide a binding site for RNA polymerase to initiate transcription. They play a critical role in determining when and how much a particular gene is transcribed. Promoters can be regulated by various factors to control the expression of genes in response to different signals or conditions.
Unlike DNA polymerase RNA polymerase do not have proofreading activity why is this not determinental to cell?
RNA polymerases do not require proofreading activity because the consequences of errors are less severe for RNA than for DNA. Additionally, cells can correct mistakes in RNA transcripts through mechanisms such as RNA editing and degradation of faulty transcripts. This allows the cell to maintain the integrity of its genetic information despite the lack of proofreading activity in RNA polymerases.
Polymerase is considered what?
Polymerase is considered an enzyme that catalyzes the synthesis of nucleic acids, such as DNA and RNA, by assembling nucleotides into a polynucleotide chain. It plays a crucial role in processes like DNA replication and transcription, where it facilitates the copying of genetic information. Different types of polymerases exist, each specialized for specific tasks in the cell, such as DNA polymerase for DNA synthesis and RNA polymerase for RNA synthesis.
What enzyme reads the DNA template?
Various DNA polymerases read the DNA template during replication of DNA. Various RNA polymerases read the DNA template during transcription.
