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During expansion, the polymerase uses a step-by-step method: it uses a single molecule strategies. It has been shown that the enzyme moves forward like a molecular vehicle, moving forward in one step a distance equal to the base pair of all the nucleotide adds to growing RNA chain. In addition, the size of the bubble, that is, twice the length of non-helical DNA, it remains constant throughout the length. 1 bp was separated before the processing enzyme, 1 bp was formed after it. In combination with the synthetic formulation, RNA polymerase performs two processes
applies to that growing text. zoo505 past papers

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The first of these is called pyrophosphorolytic formulation. In this case, the enzyme uses its active site, in a simple reverse reaction, to regenerate improperly inserted ribonucleotide removal, by reassembling PPi. The enzyme then binds another ribonucleotide in its place in growth RNA chain.In the second re-testing process, called a hydrolytic process, polymerase go back one or more nucleotides and cut off the RNA product, removing the Sequence containing error. zoo505 past papers

Another group of proteins – Nus proteins – join the polymerase at a height section also promote extension and termination procedures Completion of Writing ii. Rho absorbs RNA without polymerase, which led to termination; or iii. Rho promotes polymerase-related changes, which cause the enzyme cut text. The most recent tests suggest that the latter may be right and that the changes that are taking place cause the growing complex to stand still, in isolation to follow a little. Recent studies have also suggested that Rho binds to RNA polymerase throughout
writing writing cycle.

Therefore, Rho does not reach the polymerase by moving towards the nascent, which contains rut transcripts such as TRCF. First, we need a protein called Rho to seduce termination. Second Second results in termination without the involvement of other things. Rho-based terminators have RNA that is not well defined elements called rut sites. The work of these sites requires the creation of Rho feature.  Rho, a ring-shaped protein with six identical mechanisms subunits, bound to single-stranded RNA as it emerges polymerase.

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■ Protein also has ATPase activity, and once attached in the text, Rho uses ATP-based energy hydrolysis to perform dissolution.  The exact method of termination will still occur established, and models include the following: – i. Rho presses polymerase forward in relation to DNA again RNA, which led to termination in a similar way elimination of the TRCF protein (transcription factor coupling factor).  Rho binds double strands of DNA above and polymerase also passes close to DNA until it becomes collides with RNA polymerase. zoo505 past papers