Many G protein-coupled receptors contain seven transmembrane α-helical domains. The amino end of the protein lies at the exterior of the plasma membrane. Loops of amino acids connect the helices either at the exterior surface or on the cytosolic surface of the membrane. The loop on the cytosolic side between helices 5 and 6 is usually substantially longer than the others. Where would a coupled G protein most likely interact with this receptor?

TLS Online TPP Program

#Question id: 26467

#Unit 3. Fundamental Processes

Which of the following protein reduces the lifetimes of the rrn open promoters to a level at which they are responsive to changes in iNTP and ppGpp concentrations

TLS Online TPP Program

#Question id: 26468

#Unit 3. Fundamental Processes

RNA polymerase performs two proofreading functions on that growing transcript Choose the correct statement regarding the proofreading functions

a.in the pyrophosphorolytic editing catalyze the removal of an incorrectly inserted ribonucleotide, by reincorporation of PPi

b.In the pyrophosphorolytic editing the polymerase backtracks by one or more nucleotides and cleaves the RNA product

c.In hydrolytic editing, the polymerase backtracks by one or more nucleotides and cleaves the RNA product

d.In hydrolytic editing, catalyze the removal of an incorrectly inserted ribonucleotide, by reincorporation of Ppi

TLS Online TPP Program

#Question id: 26469

#Unit 3. Fundamental Processes

RNA proofreading and backtrack in the prokaryotes is done by

TLS Online TPP Program

#Question id: 26470

#Unit 3. Fundamental Processes

Choose which of the following statement is incorrect regarding the TCRF

TLS Online TPP Program

#Question id: 26471

#Unit 3. Fundamental Processes

Intrinsic terminators are responsible for prokaryotic transcription termination, so which of the following is the characteristics of Intrinsic terminators

a. It  include palindromic regions 

b. It do not include palindromic regions 

c. Palindromic regions that form hairpins varying in length from 7 to 20 bp

d. The stem-loop structure includes a G-C–rich region and is followed by a run of 7U residues.

TLS Online TPP Program

#Question id: 26472

#Unit 3. Fundamental Processes

The script that do not have intrinsic terminators known as