Help answer question How does finP inhibit TraJ from activating expression of the tra genes?It basepairs with the traJ message and prevents translationO It is a transcriptional repressor that binds to the operator and prevents traJ expressionIt is an inducer molecule that inhibits TraJIt is a transcriptional activator

Here both FinO and FinP play important role TraJ, is controlled by the action of the antisense RNA,…

How does finP inhibit TraJ from activating expression of the tra genes? O It basepairs with the traJ message and prevents translation It is a transcriptional repressor that binds to the operator and prevents traJ expression It is an inducer molecule that inhibits TraJ It is a transcriptional activator

How does finP inhibit TraJ from activating expression of the tra genes? O It basepairs with the traJ message and prevents translation It is a transcriptional repressor that binds to the operator and prevents traJ expression It is an inducer molecule that inhibits TraJ It is a transcriptional activator

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter9: Molecular Biology

Section: Chapter Questions

Problem 10RQ: Control of gene expression in eukaryotic cells occurs at which level(s)? a. only the transcriptional...

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13 of 16 STAT proteins signal in a manner that is uncommon for signaling proteins that carry out similar functions in cell signaling because STAT proteins O are transcriptional regulators that are regulated by second messengers are transcriptional regulators that are directly activated by binding the primary signal molecule are transcriptional regulators that are activated at the plasma membrane of the cell are transcriptional regulators that also are heterotrimeric G-proteins O are transcription regulators that function entirely at the plasma membrane of the cell
Below is a model of a signal transduction pathway that results in the transcribing of mRNA: Receptor protein Transcription factor Phosphorylation cascade DNA mRNA What is the best description of what would happen if the phosphorylation cascade resulted in a phosphate being attached to the transcription factor? O mRN would not stop being transcribed from the DNA. O The phosphorylation cascade would continue to release excess phosphates. O mRNA would stop being translated from the DNA. O Receptor proteins would not bind to the signaling hormone.
In the regulatory switch experiment, which level of gene expression regulation is the focus? Regulatory switch Enhancer Mouse Enhancer Bat Enhancer Bat-mouse translation level regulation transcription level regulation post-translational regulation O post-transcriptional regulation (RNA modification)
What is the role of general transcription factors? GTFs bind to enhancers or silencers and regulate transcription GTFs bind to the core promoter and allow transcriptional initiation GTFs are cis-acting regulatory sequences GTFs regulate the length of the mRNA GTFs are part of the RNA polymerase II holoenzyme, and control transcription initiation
A mutation in the trp repressor gene that prevents the apo-repressor from binding the co-repressor What is the correct option from the choices below? causes the Trp repressor to permanently bind the trp operator. leads to a high level of transcription initiation from the trp promoter, even when tryptophan is present in the medium. does not lead to a high concentration of mRNA molecules that code for the structural genes trp E, D, C, B, A, when tryptophan is present in the medium, because attenuation of the operon will still work. a and b, but not c b and c, but not a
Which of the following is NOT true about cis-regulatory elements (CREs)? Group of answer choices Enhancers, silencers and promotors can be located anywhere in relation to the gene Enhancers are involved with increasing gene expression CREs often contain motifs that allow transcription factors to bind CREs are involved in determining the timing, location and amount of gene expression
Control of gene expression in eukaryotic cells occurs at which level(s)? a. only the transcriptional level b. epigenetic and transcriptional levels c. epigenetic, transcriptional, and translational levels d. epigenetic, transcriptional, post-transcriptional, translational, and post-translational levels
Match each example of mutation to the correct effect on function. Hypomorphic mutation Hypermorphic mutation Antimorphic mutation Neomorphic A deletion results in the loss of part of a protein and the protein retains some of its normal activity. A mutant allele makes a protein with increased cataytic activity. A mutant form of a transcription factor binds new DNA sequences to activate different genes. A mutant from of a receptor protein interferes with the function of the wild-type receptor through heterodimerization.
The following diagram illustrates four genes from the genome of a certain insect. Different binding sites are labeled in the enhancer region of each gene. enhancer promoter ABC D E Gene 1 A D Gene 2 АС DE Gene 3 ABD Gene 4 In order for a specific gene to be expressed in the insect's cells, all of the gene's binding sites must be bound by transcriptional activators. • The insect's brain cells contain activators that bind to sites A, C, D, and E • The insect's salivary gland cells contain activators that bind to sites A, B, and D Which of the following is the most likely pattern of gene expression for the insect described above? Gene 2 will be expressed in both brain and salivary gland cells Both gene 1 and gene 4 will be expressed in salivary glands, but neither will be expressed in brain cells Gene 1 will be expressed in both brain and salivary glands Both gene 2 and gene 3 will be expressed in brain cells, but neither will be expressed in salivary gland cells
Which of the follow general transcription factors contains the protein TBP and binds to TATA box promoters first? Group of answer choices TFIID TFIIB TFIIA TFIIF
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
Place the steps below in the correct order as they would occur within a signal transduction pathway. Drag and drop options into correct order and submit. For keyboard navigation... SHOW MORE ♥ An inactive signal transduction molecule is activated. A transcription factor enters the nucleus. An active signal transduction molecule binds a transcription factor. A gene is expressed. A receptor undergoes a conformational change. A ligand binds to a receptor. [3 Fuls Your answer II II II II II