Homework Answers
Alternative splicing is the mechanism through which introns are removed and exons are joined together. The consensus sequence help the spliceosome to cut. So, if there is more than one consensus sequence where the spliceosome can cut.
Hence, the correct option is (b).
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torrect 0. Question 38 Alternative splicing of an eukaryotic gene...
Question 26 Alternative splicing of an eukaryotic gene can occur if: If there is more than...
Question 26 Alternative splicing of an eukaryotic gene can occur if: If there is more than one consensus sequence where the spliceosome can cut There are multiple transcription factors affecting intron splicing There is at least one intron There are more than two spliceosomes available
Hint 1. How is a complete initiation complex formed? Drag the labels to their correct locations...
Hint 1. How is a complete initiation complex formed? Drag the labels to their correct locations in the diagram to describe the roles of the various transcription factors in the formation of a complete initiation complex Reset Help part of initial committed complex TFIIA IIB added during formation of minimal initiation complex sa cosci.ccccccca RNA polymerase II added during formation of complete initiation complex Submit Request Answer Hint 2. How is pre-mRNA processed into mature mRNA? Select the two statements...
Alternative splicing is present in about 90% of human genes and can explain why our 20,325...
Alternative splicing is present in about 90% of human genes and can explain why our 20,325 genes can encode more than 1,000,000 proteins. Examine the image below of Gene X: Exon A Intron #1 Exon B Intron #2 Exon C 1. (2 pts) To create a transcript, which portions of this DNA sequence would be REMOVED during splicing? (Please be specific-ie. Exon A, Intron #2, etc.) 2. (3 pts) Gene X can encode 7 different proteins! Explain how this is...
the answer I gave was wrong Which of the following statements about gene regulation concerning operons...
the answer I gave was wrong
Which of the following statements about gene regulation concerning operons is INCORRECT? A regulator gene has its own promoter and is transcribed into an independent mRNA. For an operon under negative repressible control, a correpressor is required for the repressor to bind to the operator. Presence of operons where genes of related functions are clustered is common in bacteria but not in eukaryotes. For a gene under positive repressible control, the normal state is...
QUESTION 1 Which of the following statements regarding splicing is FALSE? A) The length...
QUESTION 1 Which of the following statements regarding splicing is FALSE? A) The length of introns determines the efficiency of splicing. B) Many human neurological disorders are caused by splicing errors and/or mutations in splicing factors. C) Splicing requires the action of a variety of snRNAs that direct the transesterification reactions. D) Splicing is dictated by sequence features in pre-mRNA transcripts QUESTION 2 Which of the following mRNA processing factors does NOT associate with...
Below is the partial coding strand of DNA for a gene containing an ORF, shown 5'...
Below is the partial coding strand of DNA for a gene containing
an ORF, shown 5' to 3'. Identify the regions, shown 1 to 9,
associated with the following genetic elements. Some elements may
have more than one associated region.
(a) The promoter region
(b) The ribosome binding site
(c) The ribosome binding site consensus
sequence
(d) The start codon
(f) The expected region for the +1
transcription (where the transcript
begins to be made)
(g) Is this a prokaryotic...
Not sure where I am going wrong. Each type of pre-mRNA processing has one or more...
Not sure where I am going
wrong.
Each type of pre-mRNA processing has one or more important functions. Match the function with the appropriate type of processing XAddition of 5' cap Addition of poly(A) tail RNA splicing enables movement of mRNA out of the nucleus increases mRNA stability through addition of many non-DNA-templated nucleotides facilitates binding of ribosome to beginning of mRNA involves cleavage of RNA downstream of AAUAAA consensus sequence removes non-coding regions from pre-mRNA increases mRNA stability through...
Genetics Worksheet Week 3: Gene Regulation and Epigenetics 1. Duchenne muscular dystrophy is caused by a mutation in a gene that is 2.5 million nucleotides in length and encodes a protein called dyst...
Genetics Worksheet Week 3: Gene Regulation and Epigenetics 1. Duchenne muscular dystrophy is caused by a mutation in a gene that is 2.5 million nucleotides in length and encodes a protein called dystrophin. The dystrophin protein itself is 3684 amino acids in length. Calculate below the approximate size of the mRNA that encodes dystrophin. Approximately what percentage of the gene that encodes dystrophin is intron sequence? The human genome encodes a much greater variety and number of proteins than the...
Question 1 Match the term with the best definition or description; most topics relate to the...
Question 1 Match the term with the best definition or description; most topics relate to the regulation of gene expression. General type of protein which will increase transcription rates when it attaches to a site A. Factor connected to a particular gene - B. Co-repressor C. Enhancer D. Promoter E. Structural F. Intron G. Activator H. Operator I. Basal transcription J. Glucocorticoid receptor K. Sigma factor L. Mediator M. Inducer N. TATA box O. Repressor The rates of mRNA produced...
Question 15 Not yet answered Which of the following is TRUE about eukaryotic enhancers: An enhancer...
Question 15 Not yet answered Which of the following is TRUE about eukaryotic enhancers: An enhancer Points out of 2.50 P Flag question Select one: O a. Is a DNA sequence that can be far away from the promoter and where transcriptional activators bind O b. Is an operator DNA sequence where the Mediator complex binds o c. Is a DNA sequence where the general transcription factors bind O d. Is a protein that binds at the promoter and activates...
Question 26 Alternative splicing of an eukaryotic gene can occur if: If there is more than one consensus sequence where the spliceosome can cut There are multiple transcription factors affecting intron splicing There is at least one intron There are more than two spliceosomes available
Hint 1. How is a complete initiation complex formed? Drag the labels to their correct locations in the diagram to describe the roles of the various transcription factors in the formation of a complete initiation complex Reset Help part of initial committed complex TFIIA IIB added during formation of minimal initiation complex sa cosci.ccccccca RNA polymerase II added during formation of complete initiation complex Submit Request Answer Hint 2. How is pre-mRNA processed into mature mRNA? Select the two statements...
Alternative splicing is present in about 90% of human genes and can explain why our 20,325 genes can encode more than 1,000,000 proteins. Examine the image below of Gene X: Exon A Intron #1 Exon B Intron #2 Exon C 1. (2 pts) To create a transcript, which portions of this DNA sequence would be REMOVED during splicing? (Please be specific-ie. Exon A, Intron #2, etc.) 2. (3 pts) Gene X can encode 7 different proteins! Explain how this is...
the answer I gave was wrong
Which of the following statements about gene regulation concerning operons is INCORRECT? A regulator gene has its own promoter and is transcribed into an independent mRNA. For an operon under negative repressible control, a correpressor is required for the repressor to bind to the operator. Presence of operons where genes of related functions are clustered is common in bacteria but not in eukaryotes. For a gene under positive repressible control, the normal state is...
Below is the partial coding strand of DNA for a gene containing
an ORF, shown 5' to 3'. Identify the regions, shown 1 to 9,
associated with the following genetic elements. Some elements may
have more than one associated region.
(a) The promoter region
(b) The ribosome binding site
(c) The ribosome binding site consensus
sequence
(d) The start codon
(f) The expected region for the +1
transcription (where the transcript
begins to be made)
(g) Is this a prokaryotic...
Not sure where I am going
wrong.
Each type of pre-mRNA processing has one or more important functions. Match the function with the appropriate type of processing XAddition of 5' cap Addition of poly(A) tail RNA splicing enables movement of mRNA out of the nucleus increases mRNA stability through addition of many non-DNA-templated nucleotides facilitates binding of ribosome to beginning of mRNA involves cleavage of RNA downstream of AAUAAA consensus sequence removes non-coding regions from pre-mRNA increases mRNA stability through...
Genetics Worksheet Week 3: Gene Regulation and Epigenetics 1. Duchenne muscular dystrophy is caused by a mutation in a gene that is 2.5 million nucleotides in length and encodes a protein called dystrophin. The dystrophin protein itself is 3684 amino acids in length. Calculate below the approximate size of the mRNA that encodes dystrophin. Approximately what percentage of the gene that encodes dystrophin is intron sequence? The human genome encodes a much greater variety and number of proteins than the...
Question 1 Match the term with the best definition or description; most topics relate to the regulation of gene expression. General type of protein which will increase transcription rates when it attaches to a site A. Factor connected to a particular gene - B. Co-repressor C. Enhancer D. Promoter E. Structural F. Intron G. Activator H. Operator I. Basal transcription J. Glucocorticoid receptor K. Sigma factor L. Mediator M. Inducer N. TATA box O. Repressor The rates of mRNA produced...
Question 15 Not yet answered Which of the following is TRUE about eukaryotic enhancers: An enhancer Points out of 2.50 P Flag question Select one: O a. Is a DNA sequence that can be far away from the promoter and where transcriptional activators bind O b. Is an operator DNA sequence where the Mediator complex binds o c. Is a DNA sequence where the general transcription factors bind O d. Is a protein that binds at the promoter and activates...
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