The first level of gene regulation occurs along the chromosome, through chemical modifications of the DNA...
Homework Answers
The correct options are -
C . Chemical modifications of DNA and histones could affect the binding of ribosome to mRNA to initiate translation. Because histone acetylation cause the gene more accessible for gene expression .
D. The chemical modifications to histones could alter chromatin structure and affect the ability of RNA polymerase to bind to DNA.
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The
first level of gene regulation occurs along the chromosome, through
chemical modifications of the DNA...
Each statement describes a type of gene regulation. Determine if it describes regulation at the transcription,...
Each statement describes a type of gene regulation. Determine if it describes regulation at the transcription, translation or post-translation level. 1. Genetic regulatory proteins bind to the DNA. Transcription / Posttranslation / Translation 2. A transcription terminator forms in the RNA. Transcription / Translation / Posttranslation 3. Repressor proteins bind to an mRNA and prevent ribosome binding.Translation / Posttranslation / Transcription 4. Riboswitches produce an RNA conformation that prevents ribosome binding. Posttranslation/ Translation/ Transcription 5. Antisense RNA binds to the...
please answer all parts 106. What process helps compact the DNA in a chromosome? A) anaphase...
please answer all parts
106. What process helps compact the DNA in a chromosome? A) anaphase promoting complex B) entry into S-phase of the cell cycle C) removal of the nuclear lamina D) removal of methyl groups from DNA E) histone de-acetylation 107. What does DNA Ligase do? A) removes mismatched nucleotides B) adds complimentary bases to single stranded DNA C) joins the ends of chromosomes together D) forms a phosphodiester covalent bond between adjacent nucleotides E) chews up single...
The following sentences describe chromatin structure and how altering chromatin structure can affect gene expression. Complete...
The following sentences describe chromatin structure and how altering chromatin structure can affect gene expression. Complete each sentence using the words provided.In some cells, DNA combines with proteins to form a substance calledThe lowest level of chromatin structure consists of DNA wrapped twice around a group of histones to form a(n)The formation of nucleosomes may block the binding of transcription factors and RNA polymerase II to theThe structure of chromatin can be modified by altering either the DNA or the...
Carvas X CO Inactivation of a specific transcription factor Modifications to the RNA transcript OPresence of...
Carvas X CO Inactivation of a specific transcription factor Modifications to the RNA transcript OPresence of repressor protelns to reduce transcription Question 8 10pts The following lists many forms in which gene expression ls regulated in Eukaryotes. Which of those is common to both prokaryotes and eukaryotes? Tight colling of the DNA around histone proteins, making it inaccessible to RNA polymerase Protecting the mRNA by adding a 5 G-cap and 3 poly A tal O Repulating the availablity of transcription...
4. Telomerases... a) are RNA-containing enzymes involved in replicating the ends of linear chromosomes b) cause...
4. Telomerases... a) are RNA-containing enzymes involved in replicating the ends of linear chromosomes b) cause aging in cells c) are structures located at the ends of eukaryotic chromosomes d) are needed by bacteria to complete synthesis of their chromosome ends e) are needed by bacteria to supercoil DNA 5. DNA methylation a) Modifies bases of tRNA molecules, allowing wobble b) Alters the activity of DNA polymerase by affecting access to the DNA c) Is a modification of histone tails...
answer all the questions 18) A mutation occurs such that a spliceosome cannot remove one of...
answer all the questions
18) A mutation occurs such that a spliceosome cannot remove one of the introns in a gene. What effect will this have on the gene? Translation will continue, but a nonfunctional protein will be made b) Translation will continue and will skip the intron sequence c) It will have no effect; the gene will be transcribed and translated into protein d) Transcription will terminate easily and the protein will not be made 19. During the process...
Which of the following mechanisms to regulate gene expression are observed in eukaryotes, but are not...
Which of the following mechanisms to regulate gene expression are observed in eukaryotes, but are not generally observed in prokaryotes? Choose all that apply. Genes are grouped into operons, which allows transcriptional regulation to turn them all on together. RNA silencing selectively targets mRNA and destroys it to prevent further translation. Proteins can be activated or deactivated as a form of post-translational regulation. Epigenetic regulation can open or condense sectiosn of a chromosome, regulating which genes are transcribed. Regulatory proteins...
allll pleas Question 14 (1 point) Eukaryotes modify a primary RNA transcript to generate a final...
allll pleas
Question 14 (1 point) Eukaryotes modify a primary RNA transcript to generate a final mRNA product. Which of the following modifications is something that occurs to eukaryotic RNA (which one is correct): OA) removing exons from the transcript B) adding introns into the transcript C) adding a poly(A) tail to the transcript by poly(A) polymerase OD) adding start codons to the transcript after its synthesis E) removing a 5' cap from the transcript Question 18 (1 point) Origins,...
need to help w questions In eukaryotes, the addition of a 5' cap and 3' polyadenylation......
need to help w questions
In eukaryotes, the addition of a 5' cap and 3' polyadenylation... refer to post-translational modifications occur in the cytoplasm refer to modifications of tRNA are regulated in part by the CTD of RNA polymerase II UD A. seunit Star Transcription activators can function at different steps, which of the following is not one of these steps? releasing RNA polymerase from pause recruiting RNA polymerase to the promoter region/ catalyzing addition of the 5 methyl cap...
1. DNA is coiled around what type of proteins to form nucleosomes A. Polymerases DNA replication...
1. DNA is coiled around what type of proteins to form nucleosomes A. Polymerases DNA replication of the lagging strand is discontinuous B. Transcription factors DNA replication of the lagging strand is continuous C. Helicases D. Histones E. DICER 2. Which of the following statements is true? A. DNA replication of the leading strand is discontinuous B. DNA replication of the lagging strand is discontinuous C. DNA replication of the leading strand is dispersive D. DNA replication of the lagging...
please answer all parts
106. What process helps compact the DNA in a chromosome? A) anaphase promoting complex B) entry into S-phase of the cell cycle C) removal of the nuclear lamina D) removal of methyl groups from DNA E) histone de-acetylation 107. What does DNA Ligase do? A) removes mismatched nucleotides B) adds complimentary bases to single stranded DNA C) joins the ends of chromosomes together D) forms a phosphodiester covalent bond between adjacent nucleotides E) chews up single...
The following sentences describe chromatin structure and how altering chromatin structure can affect gene expression. Complete each sentence using the words provided.In some cells, DNA combines with proteins to form a substance calledThe lowest level of chromatin structure consists of DNA wrapped twice around a group of histones to form a(n)The formation of nucleosomes may block the binding of transcription factors and RNA polymerase II to theThe structure of chromatin can be modified by altering either the DNA or the...
Carvas X CO Inactivation of a specific transcription factor Modifications to the RNA transcript OPresence of repressor protelns to reduce transcription Question 8 10pts The following lists many forms in which gene expression ls regulated in Eukaryotes. Which of those is common to both prokaryotes and eukaryotes? Tight colling of the DNA around histone proteins, making it inaccessible to RNA polymerase Protecting the mRNA by adding a 5 G-cap and 3 poly A tal O Repulating the availablity of transcription...
4. Telomerases... a) are RNA-containing enzymes involved in replicating the ends of linear chromosomes b) cause aging in cells c) are structures located at the ends of eukaryotic chromosomes d) are needed by bacteria to complete synthesis of their chromosome ends e) are needed by bacteria to supercoil DNA 5. DNA methylation a) Modifies bases of tRNA molecules, allowing wobble b) Alters the activity of DNA polymerase by affecting access to the DNA c) Is a modification of histone tails...
answer all the questions
18) A mutation occurs such that a spliceosome cannot remove one of the introns in a gene. What effect will this have on the gene? Translation will continue, but a nonfunctional protein will be made b) Translation will continue and will skip the intron sequence c) It will have no effect; the gene will be transcribed and translated into protein d) Transcription will terminate easily and the protein will not be made 19. During the process...
allll pleas
Question 14 (1 point) Eukaryotes modify a primary RNA transcript to generate a final mRNA product. Which of the following modifications is something that occurs to eukaryotic RNA (which one is correct): OA) removing exons from the transcript B) adding introns into the transcript C) adding a poly(A) tail to the transcript by poly(A) polymerase OD) adding start codons to the transcript after its synthesis E) removing a 5' cap from the transcript Question 18 (1 point) Origins,...
need to help w questions
In eukaryotes, the addition of a 5' cap and 3' polyadenylation... refer to post-translational modifications occur in the cytoplasm refer to modifications of tRNA are regulated in part by the CTD of RNA polymerase II UD A. seunit Star Transcription activators can function at different steps, which of the following is not one of these steps? releasing RNA polymerase from pause recruiting RNA polymerase to the promoter region/ catalyzing addition of the 5 methyl cap...
1. DNA is coiled around what type of proteins to form nucleosomes A. Polymerases DNA replication of the lagging strand is discontinuous B. Transcription factors DNA replication of the lagging strand is continuous C. Helicases D. Histones E. DICER 2. Which of the following statements is true? A. DNA replication of the leading strand is discontinuous B. DNA replication of the lagging strand is discontinuous C. DNA replication of the leading strand is dispersive D. DNA replication of the lagging...
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