Homework Answers
The correct option is D.
The first step in the production of an miRNA is the cleavage of the mRNA strand into two pieces to form a short double stranded RNA.
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What is the first step in the production of a miRNA? Multiple Choice infection with a...
As indicated in the image below, miRNAs usually have imperfect base pairing with their target mRNAs,...
As indicated in the image below, miRNAs usually have imperfect base pairing with their target mRNAs, which leads to translational inhibition (the RISC complex is large, and won't let ribosomes through). On the other hand, siRNAs produced from longer double stranded RNA molecules (e.g. viruses), usually show perfect binding to their target mRNAs, which leads to mRNA degradation by the RISC complex. In 100 words or fewer explain why these two types of inhibitory ncRNAs differ in their mode of...
32. Fill in the blank (3pts) The is the first modification that happens to nRNA/pre-mRNA and...
32. Fill in the blank (3pts) The is the first modification that happens to nRNA/pre-mRNA and it is added right after transcription begins by enzymes bound to the RNA Pol II CTD. This modification is immediately bound by a protein complex called in the nucleus, which is required for nuclear export. Before export, splicing must be completed, which is a process catalyzed by a large complex of proteins & SnRNA called the which catalyzes cleavage at splice sites.
QUESTION 12 The first step in the infection cycle of a virus is replication of its...
QUESTION 12 The first step in the infection cycle of a virus is replication of its genome degradation of the host genome lysis of the host cell attachment to the host cell surface QUESTION 13 Which of the following is NOT a true statement about regulons? Regulons are known to be under positive and negative control Regulons are only known to be under positive control. A regulon describes two or more operons that are under the control of the same...
Due to gene transfer between the organelles and the nucleus, Multiple Choice a chloroplast from one...
Due to gene transfer between the organelles and the nucleus, Multiple Choice a chloroplast from one plant species can be transferred to any other plant species. organelle genomes experience lower rates of mutation than they would if gene transfer did not occur. some proteins must be imported into organelles for their function mitochondria and chloroplasts have genes that allow them to live independently. mitochondrial genomes in all species have the same genes. What does DNA sequencing suggest about the relationship...
Question 2: The RNA interference (RNAi) pathway was discovered in C. elegans in 1993 and hs since rapidly towards therapeutic applications, including the first approved RNAi therapeutic in August...
Question 2: The RNA interference (RNAi) pathway was discovered in C. elegans in 1993 and hs since rapidly towards therapeutic applications, including the first approved RNAi therapeutic in August of 2018. Use your u of RNAi and its therapeutic applications to answer the questions below. (A) Compare and contrast the short interfering RNA (siRNA) and micro-RNA (miRNA) processes. In what ways are these two RNAi pathways similar? In what ways do they differ? (8 points) (B) Suppose you work for...
<Problem Set 9a Question 4 4 of 5 > Part A - TUA: Uverview UUR HIDRL...
<Problem Set 9a Question 4 4 of 5 > Part A - TUA: Uverview UUR HIDRL yur g pruun When scientists use CRISPR-Cas9 to make specific cuts to a genome, they have a goal they're trying to achieve. Ohen, they either want to modify the protein that a particular gene encodes, or they want to block production of a particular protein. Depending on the goal, they customize the SANA they insert into the cell. For the CRISPR-Cas9 system to modify...
Which of these is the best description of a virus? Multiple Choice 0 a member of...
Which of these is the best description of a virus? Multiple Choice 0 a member of the kingdom Virusae 0 the smallest bacteria known 0 a noncellular living organism 0 chemical complexes of RNA or DNA protected by a protein shell Which of the following is a characteristic of all living things? Multiple Choice 0 All living things are made up of multiple cells. 0 All living things breathe. 0 All living things maintain a constant internal environment. 0 All...
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...
Why would changes in the genes for transcription factors be expected to generate major phenotypic differences?...
Why would changes in the genes for transcription factors be expected to generate major phenotypic differences? They are extremely powerful genes. They can affect the expression of small numbers of other genes. Their gene products are remarkably stable. Their gene products normally denature more rapidly than other gene products. They can affect the expression of large numbers of other genes. Which enzyme, also responsible for siRNA formation, carves miRNAs from their double-stranded, fold- back RNA precursor (pre-miRNA)? Dicer ribonuclease RNA...
multiple choice questions 32. All of the following are standard tests used for the diagnosis and prediction of respon...
multiple choice questions 32. All of the following are standard tests used for the diagnosis and prediction of response to treatment of hepatitis C except: (A) Hepatitis C antibody [EIA] (B) Patient IL-28B genotype testing (C) Hepatitis C antigen (D) Hepatitis C genotype (E) Hepatitis C RNA by polymerase chain reaction or transcription-mediated amplification 33. Which of the following is not associated with accelerated disease progression in hepatitis C? (A) alcohol use (B) coinfection with hepatitis B (C) coinfection with...
As indicated in the image below, miRNAs usually have imperfect base pairing with their target mRNAs, which leads to translational inhibition (the RISC complex is large, and won't let ribosomes through). On the other hand, siRNAs produced from longer double stranded RNA molecules (e.g. viruses), usually show perfect binding to their target mRNAs, which leads to mRNA degradation by the RISC complex. In 100 words or fewer explain why these two types of inhibitory ncRNAs differ in their mode of...
32. Fill in the blank (3pts) The is the first modification that happens to nRNA/pre-mRNA and it is added right after transcription begins by enzymes bound to the RNA Pol II CTD. This modification is immediately bound by a protein complex called in the nucleus, which is required for nuclear export. Before export, splicing must be completed, which is a process catalyzed by a large complex of proteins & SnRNA called the which catalyzes cleavage at splice sites.
QUESTION 12 The first step in the infection cycle of a virus is replication of its genome degradation of the host genome lysis of the host cell attachment to the host cell surface QUESTION 13 Which of the following is NOT a true statement about regulons? Regulons are known to be under positive and negative control Regulons are only known to be under positive control. A regulon describes two or more operons that are under the control of the same...
Due to gene transfer between the organelles and the nucleus, Multiple Choice a chloroplast from one plant species can be transferred to any other plant species. organelle genomes experience lower rates of mutation than they would if gene transfer did not occur. some proteins must be imported into organelles for their function mitochondria and chloroplasts have genes that allow them to live independently. mitochondrial genomes in all species have the same genes. What does DNA sequencing suggest about the relationship...
Question 2: The RNA interference (RNAi) pathway was discovered in C. elegans in 1993 and hs since rapidly towards therapeutic applications, including the first approved RNAi therapeutic in August of 2018. Use your u of RNAi and its therapeutic applications to answer the questions below. (A) Compare and contrast the short interfering RNA (siRNA) and micro-RNA (miRNA) processes. In what ways are these two RNAi pathways similar? In what ways do they differ? (8 points) (B) Suppose you work for...
<Problem Set 9a Question 4 4 of 5 > Part A - TUA: Uverview UUR HIDRL yur g pruun When scientists use CRISPR-Cas9 to make specific cuts to a genome, they have a goal they're trying to achieve. Ohen, they either want to modify the protein that a particular gene encodes, or they want to block production of a particular protein. Depending on the goal, they customize the SANA they insert into the cell. For the CRISPR-Cas9 system to modify...
Which of these is the best description of a virus? Multiple Choice 0 a member of the kingdom Virusae 0 the smallest bacteria known 0 a noncellular living organism 0 chemical complexes of RNA or DNA protected by a protein shell Which of the following is a characteristic of all living things? Multiple Choice 0 All living things are made up of multiple cells. 0 All living things breathe. 0 All living things maintain a constant internal environment. 0 All...
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...
Why would changes in the genes for transcription factors be expected to generate major phenotypic differences? They are extremely powerful genes. They can affect the expression of small numbers of other genes. Their gene products are remarkably stable. Their gene products normally denature more rapidly than other gene products. They can affect the expression of large numbers of other genes. Which enzyme, also responsible for siRNA formation, carves miRNAs from their double-stranded, fold- back RNA precursor (pre-miRNA)? Dicer ribonuclease RNA...
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