2. The following schematic shows the chromosomal location of Gene 1 and Gene 2. The corresponding promoters for Gene 1 (p1) and Gene 2 (p2) are shown. Transcribed region Transcribed region Top strand 3' 5' 3' 5 Bottom strand p1 p2 Gene 1 Gene 2 g. Would the direction of transcription of Gene 1 be the same as that for Gene 2 (Yes or No)? Which DNA strand, top or bottom is the template for Gene 1 & which one for Gene 2? Explain briefly. h. From the schematic above, indicate the direction of transcription of Gene 1 and Gene 2 by drawing arrows, or describing from left to right or right to left. Where would RNA polymerase/transcription factors most likely bind and regulate transcription for each gene? i.

2. The following schematic shows the chromosomal location of Gene 1 and Gene 2. The corresponding promoters for Gene 1 (p1) and Gene 2 (p2) are shown. Transcribed region Transcribed region Top strand 3' 5' 3' 5 Bottom strand p1 p2 Gene 1 Gene 2 g. Would the direction of transcription of Gene 1 be the same as that for Gene 2 (Yes or No)? Which DNA strand, top or bottom is the template for Gene 1 & which one for Gene 2? Explain briefly. h. From the schematic above, indicate the direction of transcription of Gene 1 and Gene 2 by drawing arrows, or describing from left to right or right to left. Where would RNA polymerase/transcription factors most likely bind and regulate transcription for each gene? i.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter16: Gene Expression

Section: Chapter Questions

Problem 14RQ: A scientist compares the promoter regions of two genes. Gene A’s core promoter plus proximal...

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A scientist compares the promoter regions of two genes. Gene A’s core promoter plus proximal promoter elements encompasses 70bp. Gene B’s core promoter plus proximal promoter elements encompasses 250bp. Which of the scientist’s hypotheses is most likely to be correct? More transcripts will be made from Gene B Transcription of Gene A involves fewer transcription factors Enhancers control Gene B’s transcription Transcription of Gene A is more controlled than transcription of Gene B.
A binding .site for RNA polymerase is called a ___ . a. gene b. promoter c. codon d. protein
1. Transcription: a)State the role of RNA polymerase in gene transcription.b. Explain why the DNA is not used directly for protein translation (i.e., why is mRNA used instead?).c. Explain what occurs when a gene’s promoter region is open for RNA polymerase binding.d. Explain what occurs when a gene’s promoter regions is blocked from binding RNA polymerase.e. Explain how two cells, such as liver cells and skin cells, can become specialized in structure and function despite containing the same genome.
8 There is a promoter of a tumour suppressor gene in a mutant cancer cell line, and discover that instead of a nucleosome free region 5’ of the transcription start site there are nucleosomes bound. What would be the likely consequence on transcription of this gene? I am not sure about what is the outcome, normally it binds to the nucleosome free region 5' of the transcription start site to initiate transcription. Now, it binds with nucleosomes. What will happened? Is the DNA cannot transcripted successfully? Due to the transcription needs a naked DNA to process while in nucleosomes, DNA has been wrapped up. Thank you.
1.This is where the RNA polymerase is bound and a short region of DNA is accessible to begin the process of transcription. Group of answer choices a. Closed Promoter Complex b. Open Chromatin c. Closed Chromatin d. Open Promoter Complex 2.The nucleotide near the 3' splice site of an intron that joins with a Guanine located at the 5' splice site by a 2'-to5' phosphodiester bond is called the: Group of answer choices a. Branch Point Adenine b. Branch Point Thymine c. Branch Point Uracil d. Branch Point Cytosine 3.The form of chromatin in which histone 1 partially condenses chromatin fibers into a coiled form is called: Group of answer choices a. 10 nm fibers b. Heterochromatin c. 300 nm fibers d. Solenoid 4.Exchange of genetic information between homologous chromosomes. Group of answer choices a. Homologous Recombination b. Gene Flow c. Gene Conversion d. Homologous Repair
5a The two factors that bind directly to the DNA at Pacific sequences are TFIID and TFIIB- in general terms what is the function of each of these two transcription factors in the initiation of transcription This is not a graded question and it will never be graded, This is for studying purpose only
2. For each of the following types of gene regulation, indicate whether it occurs in eukaryotes only, in prokaryotes only, or in both prokaryotes and eukaryotes.a. differential splicingb. positive regulationc. chromatin compaction
1.A portion of an mRNA attached to a ribosome reads: 5′ GACAUGAACAGC 3′ If a tRNA with a methionine amino acid attached is in the P site of the ribosome, a tRNA with which amino acid attached will enter the A site? Group of answer choices a. Glutamic Acid b. Lysine c. Threonine d. Asparagine 2. Active transcription does not occur in regions of chromatin loops that are located ________. Group of answer choices a. A large distance away from the MARS b. Within the euchromatin c. Near the MARS d. A large distance from the telomere 3. Given the DNA sequence 5′-AUG GCU AGA GUU GAA AAA-3′, which of these sequences represents a silent mutation? Group of answer choices a. 5′-AUG GUU AGA GUU GAA AAA-3′ b. 5′-AUG GCU UGA GUU GAA AAA-3′ c. 5′-AUG GCU AGA GUU GGA AAA-3′ d. 5′-AUG GCU CGA GUU GAA AAA-3′
1. What is the production of RNA called and what is the enzyme that catalyzes the process?2. What are the similarities and differences between the transcription process and the repli-cation processes?3. Concerning their biological function what is the difference between DNA and RNA?4. Is there any situation in which DNA is made based on a RNA template? If there is,explain with an example how it occurs and state the enzyme involved?5. What is the difference between plasma membrane and cell wall?
1. In a couple of sentences, explain how eukaryotic activator proteins (that are usually gene-specific transcription factors) can enhance transcription even when bound to sequences hundreds or thousands of nucleotide pairs away from a gene’s promoter. 2. Describe three common characteristics of transcription factors. The characteristics may relate to structure, or mechanism of action (PLEASE ANSWER BOTH PLEASE)
1. Why aren't ssb proteins necessary in transcription?
1. Which of the following conditions will result to deactivation of a gene? a. histone methylation b. phosphorylation of a transcription factor c. binding of hormones to its nuclear receptor d. deactivation of transcription factor inhibitory protein 2. Direct complementarity of the microRNA to the target mRNA will lead to a. mRNA degradation b. inhibition of transcription c. chromatin remodeling d. inhibition of translation