Which of the following sequences best describes the correct (5' – 3') organization of a typical eukaryotic gene?   Question 12 options:   TSS - TATA box – enhancer - coding sequence – BREd - termination site   TATA box – TSS – BREd - coding sequence – termination site – enhancer   TATA box – BREd - TSS – operon – termination site – enhancer   TATA box – BREd – TSS – coding sequence – termination site - enhancer   Enhancer -  BREd – TSS – TATA box – coding sequence – termination si

The organization and function of the lac operon in E. coli is shown in the following figures: XXI Transcription Repressor mRNA Translation RNA polymerase M M Flask ZYA XXXX Active M-repressor protein Repressor active, operon off. The repressor protein binds with the operator, preventing transcription from the operon. (a) An inducible operon Copyright © 2007 Pearson Education, Inc., publishing as Benjamin Cummings Allolactose (inducer) Carbon/Energy Source 0 Z MInactive repressor protein (a) An inducible operon Transcription Translation XXX Permease B-Galactosidase Transacetylase Operon mRNA 3 Repressor inactive, operon on. When the inducer allolactose binds to the repressor protein, the inactivated repressor can no longer block transcription. The structural genes are transcribed, ultimately resulting in the production of the enzymes needed for lactose catabolism. Copyright © 2007 Pearson Education, Inc., publishing as Benjamin Cummings Suppose you inoculate three flasks of minimal…

amount of protein / amount of mRNA 12 mm / ↑ A B time (minutes) 20 Bacteria were grown in culture. At various time points, substances were added or removed from the culture medium. To assay the effects of the substances on operon gene expression, samples of bacteria were collected at one-minute intervals and levels of specific proteins and mRNAs were determined. If the operon under investigation is a repressible operon, which arrow indicates the addition of a molecule that binds the repressor protein?

Which of the following general transcription factors aids polymerase binding in the right direction on promoters?  Group of answer choices TFIID TFIIB TFIIA TFIIF

A bacterial species has a hypothetical sigma promoter that has the following sequence: TTGGCA - 18 bases - TATAAT What change in the level of transcription would there be if the sequence was mutated to: TTCGCA -18 bases -TATAAT O The mutation would bind the promoter to the consensus and produce normal levels of transcription O The mutation would inhibit the promoter thereby inhibiting transcription The mutation would move the promoter away from consensus and reduce the level of transcription O No change the consensus TATAAT sequence in the same. D00 F3 F4 F5 F6 F7 F8 F9 % & 5 6 7 8 9 %24

Editing during DNA replication is provided by DNA polymerase enzymatic activity of O 5'-> 3' polymerase 3'-> 5' polymerase O 3'-> 5' exonuclease O an extra enzyme that binds to DNA polymerase O 5'-> 3'exonuclease

Please review my answer for question 10