2. What is the CORRECT order of prokaryotic transcriptional events occurring aft

Question

2. What is the CORRECT order of prokaryotic transcriptional events occurring after RNA polymerase binds to the promoter? O start of RNA synthesis, open complex formation, closed complex formation, promoter clearance closed complex formation, open complex formation, promoter clearance, start of RNA synthesis O closed complex formation, open complex formation, start of RNA synthesis, promoter clearance O open complex formation, closed complex formation, start of RNA synthesis, promoter clearance o open complex formation, closed complex formation, promoter clearance, start of RNA synthesis

Explanation / Answer

Question 2

Answer :

closed complex formation, open complex formation, start of RNA synthesis, promoter clearance.

Question 5

Answer :

Template dna is copied in the 3 to 5 direction

Question 7

Answer : the half life would increase

RNA polymerase (or, all the more completely, ribonucleic corrosive polymerase, contracted RNAP or RNApol), otherwise called DNA-subordinate RNA polymerase, is a compound that produces essential transcript RNA. In cells, RNAP is important for developing RNA chains utilizing DNA qualities as formats, a procedure called translation. RNA polymerase proteins are fundamental to life and are found in all living beings and numerous infections. In concoction terms, RNAP is a nucleotidyl transferase that polymerizes ribonucleotides at the 3' end of a RNA transcript.RNA polymerase authoritative in microscopic organisms includes the sigma figure perceiving the center promoter district containing the - 35 and - 10 components (situated before the start of grouping to be deciphered) and furthermore, at a few promoters, the subunit C-terminal space perceiving promoter upstream elements.[clarification needed] There are various exchangeable sigma considers, each of which perceives an unmistakable arrangement of promoters. For instance, in E. coli, 70 is communicated under ordinary conditions and perceives promoters for qualities required under typical conditions ("housekeeping qualities"), while 32 perceives promoters for qualities required at high temperatures ("warm stun qualities").

In the wake of official to the DNA, the RNA polymerase changes from a shut complex to an open complex. This change includes the partition of the DNA strands to frame a loosened up area of DNA of around 13 bp, alluded to as the interpretation bubble. Ribonucleotides are base-combined to the layout DNA strand, as per Watson-Crick base-blending associations. Supercoiling has an imperative influence in polymerase movement in light of the loosening up and rewinding of DNA. Since areas of DNA before RNAP are loosened up, there are compensatory positive supercoils. Districts behind RNAP are rewound and negative supercoils are available.

As noted above, RNA polymerase makes contacts with the promoter area. However these balancing out contacts restrain the compound's capacity to get to DNA advance downstream and consequently the blend of the full-length item. Once the open complex is balanced out, RNA polymerase blends a RNA strand to set up a DNA-RNA heteroduplex (~8-9 bp) at the dynamic focus, which balances out the stretching complex. With a specific end goal to fulfill RNA combination, RNA polymerase must keep up promoter contacts while loosening up more downstream DNA for amalgamation, "scrunching" all the more downstream DNA into the start complex. Amid the promoter escape move, RNA polymerase is viewed as a "focused on halfway." Thermodynamically the anxiety collects from the DNA-loosening up and DNA-compaction exercises. Once the DNA-RNA heteroduplex is sufficiently long, RNA polymerase discharges its upstream contacts and successfully accomplishes the promoter escape move into the prolongation stage. Be that as it may, promoter escape is by all account not the only result. RNA polymerase can likewise ease the worry by discharging its downstream contacts, capturing interpretation. The delayed translating complex has two choices: (1) discharge the early transcript and start once more at the promoter or (2) restore another 3'OH on the early transcript at the dynamic site by means of RNA polymerase's reactant movement and recommence DNA scrunching to accomplish promoter escape. Researchers have instituted the expression "unsuccessful start" to clarify the useless cycling of RNA polymerase before the promoter escape move. The degree of fruitless start relies on upon the nearness of interpretation components and the quality of the promoter contacts

Question 2

Answer :

closed complex formation, open complex formation, start of RNA synthesis, promoter clearance.

Question 5

Answer :

Template dna is copied in the 3 to 5 direction

Question 7

Answer : the half life would increase

RNA polymerase (or, all the more completely, ribonucleic corrosive polymerase, contracted RNAP or RNApol), otherwise called DNA-subordinate RNA polymerase, is a compound that produces essential transcript RNA. In cells, RNAP is important for developing RNA chains utilizing DNA qualities as formats, a procedure called translation. RNA polymerase proteins are fundamental to life and are found in all living beings and numerous infections. In concoction terms, RNAP is a nucleotidyl transferase that polymerizes ribonucleotides at the 3' end of a RNA transcript.RNA polymerase authoritative in microscopic organisms includes the sigma figure perceiving the center promoter district containing the - 35 and - 10 components (situated before the start of grouping to be deciphered) and furthermore, at a few promoters, the subunit C-terminal space perceiving promoter upstream elements.[clarification needed] There are various exchangeable sigma considers, each of which perceives an unmistakable arrangement of promoters. For instance, in E. coli, 70 is communicated under ordinary conditions and perceives promoters for qualities required under typical conditions ("housekeeping qualities"), while 32 perceives promoters for qualities required at high temperatures ("warm stun qualities").

In the wake of official to the DNA, the RNA polymerase changes from a shut complex to an open complex. This change includes the partition of the DNA strands to frame a loosened up area of DNA of around 13 bp, alluded to as the interpretation bubble. Ribonucleotides are base-combined to the layout DNA strand, as per Watson-Crick base-blending associations. Supercoiling has an imperative influence in polymerase movement in light of the loosening up and rewinding of DNA. Since areas of DNA before RNAP are loosened up, there are compensatory positive supercoils. Districts behind RNAP are rewound and negative supercoils are available.

As noted above, RNA polymerase makes contacts with the promoter area. However these balancing out contacts restrain the compound's capacity to get to DNA advance downstream and consequently the blend of the full-length item. Once the open complex is balanced out, RNA polymerase blends a RNA strand to set up a DNA-RNA heteroduplex (~8-9 bp) at the dynamic focus, which balances out the stretching complex. With a specific end goal to fulfill RNA combination, RNA polymerase must keep up promoter contacts while loosening up more downstream DNA for amalgamation, "scrunching" all the more downstream DNA into the start complex. Amid the promoter escape move, RNA polymerase is viewed as a "focused on halfway." Thermodynamically the anxiety collects from the DNA-loosening up and DNA-compaction exercises. Once the DNA-RNA heteroduplex is sufficiently long, RNA polymerase discharges its upstream contacts and successfully accomplishes the promoter escape move into the prolongation stage. Be that as it may, promoter escape is by all account not the only result. RNA polymerase can likewise ease the worry by discharging its downstream contacts, capturing interpretation. The delayed translating complex has two choices: (1) discharge the early transcript and start once more at the promoter or (2) restore another 3'OH on the early transcript at the dynamic site by means of RNA polymerase's reactant movement and recommence DNA scrunching to accomplish promoter escape. Researchers have instituted the expression "unsuccessful start" to clarify the useless cycling of RNA polymerase before the promoter escape move. The degree of fruitless start relies on upon the nearness of interpretation components and the quality of the promoter contacts

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.