Which of the following might decrease the transcription of all genes in a bacterial cell? Select...
Which of the following might decrease the transcription of all genes in a bacterial cell?
Select one:
a.
a decrease in the amount of sigma factor
b.
a decrease in the amount of RNA polymerase II
c.
a mutation that introduced extensive sequence changes into the DNA
that precedes a single gene’s transcription start site
d.
a mutation that introduces a stop codon into the DNA that precedes
the gene’s coding sequence
Homework Answers
Statement C : a mutation that introduced extensive sequence changes into the DNA that precedes a single gene’s transcription start site, might decrease the transcription in a bacterial cell but of only one specific gene.
Statement D : a mutation that introduces a stop codon into the DNA that precedes the gene’s coding sequence- since, translational stops is not recognised by the transcription machinery, statement C would have no effect on gene transcription.
Statement B: a decrease in the amount of RNA polymerase II can decrease the transcription of many genes in a bacterial cells.
Statement A: a decrease in the amount of Sigma factor- since Sigma factor is important for initiation of gene transcription, decrease in its amount can decrease the transcription of all gene in a bacterial cell.
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Which of the following might decrease the transcription of all
genes in a bacterial cell?
Select...
Uluruunu us RJ15 1. Draw or describe the process of eukaryotic transcription and translation, using the...
Uluruunu us RJ15 1. Draw or describe the process of eukaryotic transcription and translation, using the following terms as needed (not all terms will be used): sigma factor, RNA polymerase, DNA polymerase, origin of replication, ribosome, start codon, transcriptional start site, stop codon, nucleus, -10 and -35 sequences, TATA box, TBP, inducer, transcriptional stop site, Shine-Delgrano sequence, Kozak sequence, RNA splicing. 2. Draw or describe the process of prokaryotic/eubacterial transcription and translation, using as many of the terms above as...
1. Which of the following statements concerning transcription of bacterial mRNA is not true? Bacterial mRNA...
1. Which of the following statements concerning transcription of bacterial mRNA is not true? Bacterial mRNA must have intron material removed before it can be used in the process of protein translation.* Energy necessary for transcription is provided by the breaking of phosphate bonds carried by ribonucleotide triphosphates (rNTPs). A sigma factor recognizes the promoter site sequences on the DNA strand during transcription. A guanine-rich sequence on the template DNA molecule causes the growing RNA strand to loop and detach.
6:35 5 minutes ago 25) Which of the following turns off transcription by binding to the operator? A) repressons B) lactose C) RNA polymerase D) promoters E) enzymes 25) 26) In bacteria, what n...
6:35 5 minutes ago 25) Which of the following turns off transcription by binding to the operator? A) repressons B) lactose C) RNA polymerase D) promoters E) enzymes 25) 26) In bacteria, what name is given to a cluster of genes with related functions, along with their control 26) A) exon B) operon C) promoter D) activator E) regulatory gene A mutant bacterial cell has a defective aminoacyl synthetase that attaches a lysine to tRNAs with the anticodon AAA instead...
Exam Practice Questions: L09-11 1. Fill in each blank with the best word or phrase selected...
Exam Practice Questions: L09-11 1. Fill in each blank with the best word or phrase selected from the list below. Not all words or phrases will be used; each word or phrase should be used only once. promoter translation pause site RBS sigma factor tmRNA RNA polymerase stop codon transcription Rho factor ribosome start codon DNA polymerase attenuation tRNA The first step in gene expression is by to make an mRNA that encodes for one or more proteins. This requires...
Hello. I need some help with these genetics questions. Id grealty appreciate the help! Question 11...
Hello. I need some help with these genetics questions. Id grealty
appreciate the help!
Question 11 (1 point) An Of C) mutation results in O no transcription. inducible transcription. transcription but no translation. no translation constitutive transcription. Question 12 [1 point) What are the trans acting factors that control transcription in bacterial genes? cap. start codon, stop codon. O enhancers, Silencers, operator, promoter, polyadenylation signal 5 prime end of RNA, GU splice site, branch point. A. AG-splice site, polyadenylation signal...
one correct answer Question 12 (1 point) What are the trans acting factors that control transcription...
one
correct answer
Question 12 (1 point) What are the trans acting factors that control transcription in bacterial genes? O cap, start codon, stop codon. enhancers, silencers, operator, promoter, polyadenylation signal. 5 prime end of RNA, GU-splice site, branch point-A, AG-splice site, polyadenylation signal. O repressors, activators, cap, start codon, stop codon. O promoters, GU-splice site, branch point-A, AG-splice site, polyadenylation signal. enhancers, silencers, promoters, polyadenylation signal. repressors, activators. attenuators, Shine-Dalgarno sequence, start codon, stop codon attenuators, activator binding site,...
Multiple types of RNAs are involved in translation. Choose the all the types of RNAs and...
Multiple types of RNAs are involved in translation. Choose the all the types of RNAs and their functions in translation. a. mRNAs are templates that provide coding information to form proteins b. rRNAs are ribozymes that catalyze the addition of amino acids. c. mRNAs are adaptor molecules that contain amino acids. d. tRNAs are ribozymes that catalyze the addition of amino acids. e.rRNAs are templates that provide coding information to form proteins. O f. tRNAs are adaptor molecules that contain...
pls fo all 20) A) an enzyme that synthesizes RNA as part of the transcription process...
pls fo all
20) A) an enzyme that synthesizes RNA as part of the transcription process B) an enzyme that uses RNA as a substrate C) an enzyme that catalyzes the association between the large and small ribosomal subunits D) an enzyme that synthesizes RNA primers during DNA replication E) an RNA with enzymatic activity 20) What is a ribozyme? 21) 21) Alternative RN A splicing A) increases the rate of transcription. B) can allow the production of similar proteins...
Which of these is involved in the transcription of tRNA genes? A. RNA Pol 1 B....
Which of these is involved in the transcription of tRNA genes? A. RNA Pol 1 B. RNA Pol 2 C.RNA Pol 3 D.RNA Pol 4 E. Not sure A promoter is.... A. Proteins that defines the beginning of a gene B. DNA elements that help define the beginning of a gene C. It is the DNA sequence at the start of a gene D. Not sure Promoters TATA Start site What is the TATA box? A. It's a DNA sequence...
13. Why are ribonucleoside triphosphates the monomers required for RNA synthesis rather than ribonucleoside monophosphates? A....
13. Why are ribonucleoside triphosphates the monomers required for RNA synthesis rather than ribonucleoside monophosphates? A. Only ribonucleoside triphosphates contain the sugar ribose. B. Ribonucleoside triphosphates have low potential energy, making the polymerization reaction endergonic. C. Ribonucleoside triphosphates have high potential energy, making the polymerization reaction exergonic. D. Ribonucleoside monophosphates cannot form complementary base pairs with the DNA template. E. Ribonucleoside triphosphates are not used, rather all use deoxyriboside triphosphates. 14. How is a mutation in a bacterial cell that...
Uluruunu us RJ15 1. Draw or describe the process of eukaryotic transcription and translation, using the following terms as needed (not all terms will be used): sigma factor, RNA polymerase, DNA polymerase, origin of replication, ribosome, start codon, transcriptional start site, stop codon, nucleus, -10 and -35 sequences, TATA box, TBP, inducer, transcriptional stop site, Shine-Delgrano sequence, Kozak sequence, RNA splicing. 2. Draw or describe the process of prokaryotic/eubacterial transcription and translation, using as many of the terms above as...
1. Which of the following statements concerning transcription of bacterial mRNA is not true? Bacterial mRNA must have intron material removed before it can be used in the process of protein translation.* Energy necessary for transcription is provided by the breaking of phosphate bonds carried by ribonucleotide triphosphates (rNTPs). A sigma factor recognizes the promoter site sequences on the DNA strand during transcription. A guanine-rich sequence on the template DNA molecule causes the growing RNA strand to loop and detach.
6:35 5 minutes ago 25) Which of the following turns off transcription by binding to the operator? A) repressons B) lactose C) RNA polymerase D) promoters E) enzymes 25) 26) In bacteria, what name is given to a cluster of genes with related functions, along with their control 26) A) exon B) operon C) promoter D) activator E) regulatory gene A mutant bacterial cell has a defective aminoacyl synthetase that attaches a lysine to tRNAs with the anticodon AAA instead...
Exam Practice Questions: L09-11 1. Fill in each blank with the best word or phrase selected from the list below. Not all words or phrases will be used; each word or phrase should be used only once. promoter translation pause site RBS sigma factor tmRNA RNA polymerase stop codon transcription Rho factor ribosome start codon DNA polymerase attenuation tRNA The first step in gene expression is by to make an mRNA that encodes for one or more proteins. This requires...
Hello. I need some help with these genetics questions. Id grealty
appreciate the help!
Question 11 (1 point) An Of C) mutation results in O no transcription. inducible transcription. transcription but no translation. no translation constitutive transcription. Question 12 [1 point) What are the trans acting factors that control transcription in bacterial genes? cap. start codon, stop codon. O enhancers, Silencers, operator, promoter, polyadenylation signal 5 prime end of RNA, GU splice site, branch point. A. AG-splice site, polyadenylation signal...
one
correct answer
Question 12 (1 point) What are the trans acting factors that control transcription in bacterial genes? O cap, start codon, stop codon. enhancers, silencers, operator, promoter, polyadenylation signal. 5 prime end of RNA, GU-splice site, branch point-A, AG-splice site, polyadenylation signal. O repressors, activators, cap, start codon, stop codon. O promoters, GU-splice site, branch point-A, AG-splice site, polyadenylation signal. enhancers, silencers, promoters, polyadenylation signal. repressors, activators. attenuators, Shine-Dalgarno sequence, start codon, stop codon attenuators, activator binding site,...
Multiple types of RNAs are involved in translation. Choose the all the types of RNAs and their functions in translation. a. mRNAs are templates that provide coding information to form proteins b. rRNAs are ribozymes that catalyze the addition of amino acids. c. mRNAs are adaptor molecules that contain amino acids. d. tRNAs are ribozymes that catalyze the addition of amino acids. e.rRNAs are templates that provide coding information to form proteins. O f. tRNAs are adaptor molecules that contain...
pls fo all
20) A) an enzyme that synthesizes RNA as part of the transcription process B) an enzyme that uses RNA as a substrate C) an enzyme that catalyzes the association between the large and small ribosomal subunits D) an enzyme that synthesizes RNA primers during DNA replication E) an RNA with enzymatic activity 20) What is a ribozyme? 21) 21) Alternative RN A splicing A) increases the rate of transcription. B) can allow the production of similar proteins...
Which of these is involved in the transcription of tRNA genes? A. RNA Pol 1 B. RNA Pol 2 C.RNA Pol 3 D.RNA Pol 4 E. Not sure A promoter is.... A. Proteins that defines the beginning of a gene B. DNA elements that help define the beginning of a gene C. It is the DNA sequence at the start of a gene D. Not sure Promoters TATA Start site What is the TATA box? A. It's a DNA sequence...
13. Why are ribonucleoside triphosphates the monomers required for RNA synthesis rather than ribonucleoside monophosphates? A. Only ribonucleoside triphosphates contain the sugar ribose. B. Ribonucleoside triphosphates have low potential energy, making the polymerization reaction endergonic. C. Ribonucleoside triphosphates have high potential energy, making the polymerization reaction exergonic. D. Ribonucleoside monophosphates cannot form complementary base pairs with the DNA template. E. Ribonucleoside triphosphates are not used, rather all use deoxyriboside triphosphates. 14. How is a mutation in a bacterial cell that...
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