Which is FALSE about the protein that regulates tryptophan biosynthesis?O The recognition helices can change positionO It binds to DNA as a dimerO It is a Beta-sheet saddle DNA binding proteinO It represses transcription of tryptophan biosynthetic genesO It binds to DNA in the presence of tryptophan

Tryptophan is an essential amino acid. Thus, it is obtained through the diet. In plants, the amino…

Answered: Which is FALSE about the protein that…

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter9: Cell Communication

Section: Chapter Questions

Problem 3VCQ: Figure 9.17 Which of the following statements about quorum sensing is false? Autoinducer must bind...

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How long would the peptide be that is translated from this MILNA sequence: 5-AUGGGCUACCGA-3? a. 0 b. 2 c. 3 d. 4
What determines the conformation of Mediator? TAND 1 O TAFS 6 and 9 O interactions with transactivator proteins O cyclin H O the phosphorylation state of the CTD
Part A What kind of inhibition is imposed on HIV protease by ritonavir? O irreversible inhibition O reversible inhibition O uncompetitive inhibition. Submit Request Answer
Which is most important in catalysis of peptidyl transfer? A Massively parallel sequencing data collection based on nanofluidics and nanoimaging b Release of histamine by mast cells in response to wound c Assist by 2+-OH on A76 ribose of p- site RNA d Complement system of 20-30 proteins in coordinated innate immune response e Nucleophilic attack on incoming dntp by 3-OH on deoxyribose at 3 ' end of primer
What is the common feature of RTKS: O cysteine rich domains O SS binding of external proteins O trysosine-kinase domains immunophogulin-like domains kinase insert regions fibronectin-typ II like domains
Capacity to carry oxygen by sickle cell hemoglobin is reduced due to A premature termination of a- globin chain translation b splice junction mutation c formation of a rope-like polymer of deoxyhemoglobin d Micro RNA expression in hematopoietic celles E replacement of O2 in heme by cyanide ion
How does the GA(T>C)A mutation in the Duffy promoter provide malaria resistance? O Reduced Duffy expression is toxic to malarial parasite Plasmodium vivax O Plasmodium vivax can't bind to Endothelial cells O Plasmodium vivax can't bind to Blood Cells O Duffy has not effect on malarial resistance
Which of the situations below will enhance microtubule growth? O addition of a drug that inhibits GDP to GTP exchange on free subunits O addition of a drug that increases the dissociation of GTP-tubulin from the polymer O addition of a drug that inhibits GTP hydrolysis in subunits incorporated into the polymer O None of the above
Match the letter in the diagram with the accumulation or localization of active (or about to be active) protein in a given cellular context, which is wild-type unless specified. AD5CES
The following diagram depicts the elements at the: Ac TTC g99 Ea cgcc tata an! ATT BRE TATA box Inr DPE (TBP) TFIIB TEIID Promoter Enhancer O transcribed gene O Silencer
What mechanism of RNA regulation is responsible for the two different forms of apolipoprotein B? O Alternative splicing ORNA editing ORNA interference O Covalent modification of RNA
P₁0 ORF1 t₁ ORF2 ORF3 t₂ The diagram above illustrates an operon that is regulated by the RepR protein. O A small molecule, X, is needed to enable RepR to bind to the operator (O). When X is absent, which of the following statements is most accurate? O RNA polymerase binding to the P₁ promoter is unblocked Equal amounts of ORF1, ORF2, and ORF3 are made Expression of ORF2 and ORF3 is prevented by the terminator t₁ O Expression of ORF1, ORF2, and ORF3 is de- repressed

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