How rna polymerase recognize promoter of dna template?
Answers
How rna polymerase recognize promoter of dna template?
Explanation:
The region where RNA polymerase binds on the DNA strand is called promoter.The DNA opens up in the promoter region so that RNA polymerase can begin transcription. Each gene (or, in bacteria, each group of genes transcribed together) has its own promoter. A promoter contains DNA sequences that let RNA polymerase or its helper proteins attach to the DNA.
Answer:
In its absence, the core enzyme binds DNA indiscriminately and tightly. Second, the σ subunit enables RNA polymerase to recognize promoter sites. ... The σ subunit is released when the nascent RNA chain reaches nine or ten nucleotides in length. After its release, it can assist initiation by another core enzyme.
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