Homework Answers
In this case, the correct answer is post-translational modification. Once the protein is synthetized in the ribosomes (producing a polypeptide chain) will undergo at the instant a post-translational modification by several enzymes. This a fast process but it require a lot of energy since the enzymatic machinery depends on ATP. An example of these modifications is when a prohormone (synthetized in the ribosome) is converted into a hormone by several modifications.
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QUESTION 6 1 points Save Answer Which point of gene expression will cause the most rapid...
Regulation of Gene Expression in Eukaryotes In eukaryotes, the Central Dogma of Genetics can be expanded...
Regulation of Gene Expression in Eukaryotes In eukaryotes, the Central Dogma of Genetics can be expanded to include post-transcriptional processing and post-translational processing, thus the Dogma becomes: Replication - Transcription Post-transcriptional Processing -Translation - Post-translational Processing - Functional Protein - Expressed Trait. This is the flow of information from the genetic material to the actual physical, chemical or behavioral trait in an organism. Of course, some traits are controlled by multiple genes and some also have an environmental component. At...
Which of the following is the most appropriate indication of gene expression level? A ONA 6....
Which of the following is the most appropriate indication of gene expression level? A ONA 6. Protein CRNA DmRNA QUESTION 14 In reality, what is being directly quantified in real-time rt-PCR to estimate the gene expression level? OM Protein levels by amplifying with ribosomes using fluorescently tagged amino acids B. DNA which is amplified with gene-specific primers and measured for fluorescence Reverse transcriptase levels which indicates rate of mRNA transcription O mRNA which is amplified with gene-specific primers and measured...
QUESTION 5 1 points Save Answe Which type of RNA molecules are part of the spliceosomes...
QUESTION 5 1 points Save Answe Which type of RNA molecules are part of the spliceosomes in eukaryotes? ARNA mRNA 5 E TRNA QUESTION 6 1 points Save Answi Sickle cell disease is caused by a mutation affecting one amino acid in the beta unit of hemoglobin protein. How does the change of one amino acid cause sickle disease? A. It affects transcription, so no mRNA is made B. It affects translation, so no polypeptide is made. It affects the...
please answer all 6 questions Question 27 3 pts TRBP is a protein important for the...
please answer all 6 questions
Question 27 3 pts TRBP is a protein important for the formation of the RISC complex. Which of the following would you expect in cells with null mutations in TRBP? o Reduced siRNA-mediated mRNA degradation o Increased miRNA-mediated translational repression o Increased deadenylase-mediated mRNA degradation o Reduced proteasome-mediated protein degradation D Question 28 3 pts A protein that binds to the 3' UTR of a VEGF mRNA and promotes deadenylation and uncapping is likely to:...
on 6 of 20 0 points Save A You are trying to understand how the expression...
on 6 of 20 0 points Save A You are trying to understand how the expression of the estrogen receptor (ER) gene impacts female development because you are interested in breast cancer. Your first question is whether receptor gene expression is regulated at the transcriptional or translational level during embryonic development in your mouse model system. Which of the following will give you an answer? A. An analysis of amino acid production by the different cells you are examining shows...
Chromatin remodeling enzyme complexes ______. Choose all that apply. Group of answer choices: 1.cause DNA to...
Chromatin remodeling enzyme complexes ______. Choose all that apply. Group of answer choices: 1.cause DNA to be repositioned for access or tighter packing. 2.are non-histone proteins that can bind to the chromatin in interphase nucleus. 3.promote the transition from the 30nm fibre to the 11nm fibre. 4.are essential for regulating gene expression. 5.are able to bind to the chromatin structure anywhere and cause DNA within a nucleosome to be repositioned. 6.bind to chromatin by binding to chemical modifications in the...
I need help with question 24. The answer is D. Thanks for any help in advance....
I need help with question 24. The answer is D. Thanks
for any help in advance.
pie A) the stimulation of translation by initiation factors. B) a post-transcriptional mechanism to regulate mRNA C) transcriptional control of gene expression. (D) post-translational control that activates certain proteins. E) a eukaryotic equivalent of prokaryotic promoter functioning. 24) If you were to observe the activity of methylated DNA, you would expect it to Al be unwinding in preparation for protein synthesis. B) induce protein...
Part 1. Eukaryotes use at least two distinct mechanisms to control gene expression by altering the...
Part 1. Eukaryotes use at least two distinct mechanisms to control gene expression by altering the structure of chromatin around a particular gene. One of these mechanisms is the covalent modification of histones to switch DNA between an open and closed confirmation. A second mechanism is the covalent modification of DNA (typically on cytosines) by methylation. A. Describe a type of histone modification and explain what effect is has on chromatin, and how that effect is achieved. a. One type...
Question 3 1 pts What would happen to the expression of this gene if this cell...
Question 3 1 pts What would happen to the expression of this gene if this cell did not have any GAL4 protein and why? It would be always off because GAL4 activates transcription . it would be always on because GAL80 won't be able to bind DNA without GAL4 it would be always on because GAL4 inhibits transcription it would only be on when galactose is present Question 4 1 pts What would happen to the expression of this gene...
Answer the questions: Question 1 Transcription begins at the..... a. operon o b. repressor c. genome...
Answer the questions:
Question 1 Transcription begins at the..... a. operon o b. repressor c. genome 17d. promoter Question 2 0.5 points Save RNA is synthesized on a DNA template in a process called replication, DNA polymerase translation, RNA polymerase transcription, RNA polymerise t ranscription, DNA polymerase Question 3 Which eukaryotic RNA polymerase makes tRNA's? a RNA polymerase IIIb. Any of these RNA polymerase I od RNA polymerase II A Moving to another question will save this response. Question 4...
Which of the following is the most appropriate indication of gene expression level? A ONA 6. Protein CRNA DmRNA QUESTION 14 In reality, what is being directly quantified in real-time rt-PCR to estimate the gene expression level? OM Protein levels by amplifying with ribosomes using fluorescently tagged amino acids B. DNA which is amplified with gene-specific primers and measured for fluorescence Reverse transcriptase levels which indicates rate of mRNA transcription O mRNA which is amplified with gene-specific primers and measured...
QUESTION 5 1 points Save Answe Which type of RNA molecules are part of the spliceosomes in eukaryotes? ARNA mRNA 5 E TRNA QUESTION 6 1 points Save Answi Sickle cell disease is caused by a mutation affecting one amino acid in the beta unit of hemoglobin protein. How does the change of one amino acid cause sickle disease? A. It affects transcription, so no mRNA is made B. It affects translation, so no polypeptide is made. It affects the...
please answer all 6 questions
Question 27 3 pts TRBP is a protein important for the formation of the RISC complex. Which of the following would you expect in cells with null mutations in TRBP? o Reduced siRNA-mediated mRNA degradation o Increased miRNA-mediated translational repression o Increased deadenylase-mediated mRNA degradation o Reduced proteasome-mediated protein degradation D Question 28 3 pts A protein that binds to the 3' UTR of a VEGF mRNA and promotes deadenylation and uncapping is likely to:...
on 6 of 20 0 points Save A You are trying to understand how the expression of the estrogen receptor (ER) gene impacts female development because you are interested in breast cancer. Your first question is whether receptor gene expression is regulated at the transcriptional or translational level during embryonic development in your mouse model system. Which of the following will give you an answer? A. An analysis of amino acid production by the different cells you are examining shows...
I need help with question 24. The answer is D. Thanks
for any help in advance.
pie A) the stimulation of translation by initiation factors. B) a post-transcriptional mechanism to regulate mRNA C) transcriptional control of gene expression. (D) post-translational control that activates certain proteins. E) a eukaryotic equivalent of prokaryotic promoter functioning. 24) If you were to observe the activity of methylated DNA, you would expect it to Al be unwinding in preparation for protein synthesis. B) induce protein...
Part 1. Eukaryotes use at least two distinct mechanisms to control gene expression by altering the structure of chromatin around a particular gene. One of these mechanisms is the covalent modification of histones to switch DNA between an open and closed confirmation. A second mechanism is the covalent modification of DNA (typically on cytosines) by methylation. A. Describe a type of histone modification and explain what effect is has on chromatin, and how that effect is achieved. a. One type...
Question 3 1 pts What would happen to the expression of this gene if this cell did not have any GAL4 protein and why? It would be always off because GAL4 activates transcription . it would be always on because GAL80 won't be able to bind DNA without GAL4 it would be always on because GAL4 inhibits transcription it would only be on when galactose is present Question 4 1 pts What would happen to the expression of this gene...
Answer the questions:
Question 1 Transcription begins at the..... a. operon o b. repressor c. genome 17d. promoter Question 2 0.5 points Save RNA is synthesized on a DNA template in a process called replication, DNA polymerase translation, RNA polymerase transcription, RNA polymerise t ranscription, DNA polymerase Question 3 Which eukaryotic RNA polymerase makes tRNA's? a RNA polymerase IIIb. Any of these RNA polymerase I od RNA polymerase II A Moving to another question will save this response. Question 4...
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