meramera50
02.08.2019 •
Biology
What happens when an air bubble passes through the buret in a titration?
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Ответ:
Assume that the reaction is
acid + base → salt + waterThe experimental value of MB will be greater than the true value.
Hope this helps!
STSN
Ответ:
Binding of RNA polymerase to consensus sequences on DNA.
Explanation:
A σ factor or sigma factor is known as a protein that is needed for the initiating of the transcription process in bacteria. It is known as a bacterial transcription initiation factor that helps to enable specific binding of RNAP (RNA polymerase) to gene promoters.
The σ factor, together with RNA polymerase, is called the RNA polymerase holoenzyme complex (which is required for the initiation of the transcription process). The σ subunit of prokaryotic RNAP consensus sequences found in the promoter region which is present in the upstream of the transcription start sight. A promoter is known as a DNA sequence where the transcription machinery binds and starts the transcription process.