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Question
Alternative splicing is also known as differential splicing and this process take place in eukaryotes. This process help in controlling the expression of genes and making the different polypeptides to be made from a single gene. The alternative splicing increases the diversity of mRNA become expressed and lead to the formation of different polypeptide to be made from single gene. Hence, option b is correct.
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D. Alternative splicing allows for: o enhanced recognition of an mRNA by a ribosome. O different...
QUESTION 1 RNA poll initiates synthesis of the mRNA transcript without a primer True O False...
QUESTION 1 RNA poll initiates synthesis of the mRNA transcript without a primer True O False QUESTION 2 En The +1 position identifies the location for translation to begin when bound the mRNA is bound by the ribosomal subunit. True False QUESTION 3 The small ribosomal subunit binds the mRNA transcript at a sequence that is complementary to the gene promoter in order to initiate translation. O True False QUESTION 4 The 5' cap is necessary for protection from exonuclease...
Question 17 Polycistronic RNA in prokaryotes allows translation of different polypeptides because • there are multiple...
Question 17 Polycistronic RNA in prokaryotes allows translation of different polypeptides because • there are multiple RNA polymerases that read the transcript a. • multiple ribosomes can attach consecutively on the same mRNA molecule b. • there are several open reading frames corresponding to a single gene transcript • chaperones help the newly-emerging polypeptides fold correctly d.
10. Alternative splicing is NOT responsible for which of the following developmental occurrences? generation of K+...
10. Alternative splicing is NOT responsible for which of the following developmental occurrences? generation of K+ ion channels in ear hair cells that open at different Ca2+ concentrations and tune hearing generation of neuronal synaptic connections in Drosophila differential expression of beta, gamma, delta, and epsilon globin genes throughout development sex differentiation in Drosophila 11. In birds, a gene encoding a Ca2+-activated K+ channel is expressed in auditory hair cells as multiple mRNAs, which encode for proteins that open at...
What does the 5 prime cap on the mature mRNA consist of? (Choose all that apply)...
What does the 5 prime cap on the mature mRNA consist of? (Choose all that apply) cap proteins backwards, methylated G nucleotide polyA tail ribosome QUESTION 7 Which DNA regions are necessary to specify removal of an intron? (choose all that apply) cleavage site branch point 5' splice site 3' splice site U-rich sequence QUESTION 9 Which of the following can permit a single gene to produce several different proteins? (choose all that apply) multiple 5' capping sites alternative splicing...
QUESTION 13 What chemical group is at the end of an amino acid chain corresponding to...
QUESTION 13 What chemical group is at the end of an amino acid chain corresponding to the 3' end of the mRNA molecule? A. Peptide bond B.5 phosphate group C.3" hydroxyl group D. Amino (N-terminus) E. Carboxyl (C-terminus) QUESTION 14 Which of the following is true regarding pre-mRNA modifications/processing? O A. Alternative splicing allows for increased complexity and synthesis of protein isomers OB. The 5' cap is added after RNA polymerase dissociates from the gene OC. The poly A tail...
What is the function of the 3' poly-A sequence in eukaryotic mRNA? Select one: O a....
What is the function of the 3' poly-A sequence in eukaryotic mRNA? Select one: O a. Intron splicing signal. O b. Initial attachment site for ribosomes. O c. Translation termination. O d. Protection from cytosolic enzymes. What is the function of the 5' cap in eukaryotic mRNA? Select one: O a. Polyadenylation of the 5' end of the mRNA. b. Intron splicing signal. O c. It must be on the mRNA in order for the mature mRNA to be exported...
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...
Answer the questions: Question 11 Recognition/binding site of RNA polymerase is called a Receptorb. Promoter ....
Answer the questions:
Question 11 Recognition/binding site of RNA polymerase is called a Receptorb. Promoter . Facilitatord. Terminator Question 12 .A specific factor helps RNA polymerase binding to promoters and transcribe genes a Delta b. Beta Gamma d. Sigma Question 13 ............ Promoters lack a TATA box are referred to as TATA less promoters, for example operon Housekeeping genes b. Functional genesc d. Structural genes Question 14 0.5 points Save Answer During "RNA processing" All of the exons are a....
25. What binds to a stop codon on a mRNA during translation? a. transcription factor c....
25. What binds to a stop codon on a mRNA during translation? a. transcription factor c. termination factor b. tRNA d. transcription initiator 26. What is typically attached to the acceptor end of a tRNA? a. a protein b. an amino acid C a ribosome d. a nucleosome 27. During mRNA processing, what is put on the 3' end of a primary mRNA transcript? a. a poly-A tail b. a cap d. an intron c. an exon 28. Which of...
In humans, there are about 200 different types of cells. Why are your liver cells different...
In humans, there are about 200 different types of cells. Why are your liver cells different from skin cells, or neurons, or muscle cells? During development, each cell accumulates different mutations changing their DNA They produce the same proteins but some of those proteins are denatured in each cell They have different DNA and thus, each cell produces different proteins They produce the same kind of proteins but not all proteins are active in each cell They have the same...
QUESTION 1 RNA poll initiates synthesis of the mRNA transcript without a primer True O False QUESTION 2 En The +1 position identifies the location for translation to begin when bound the mRNA is bound by the ribosomal subunit. True False QUESTION 3 The small ribosomal subunit binds the mRNA transcript at a sequence that is complementary to the gene promoter in order to initiate translation. O True False QUESTION 4 The 5' cap is necessary for protection from exonuclease...
Question 17 Polycistronic RNA in prokaryotes allows translation of different polypeptides because • there are multiple RNA polymerases that read the transcript a. • multiple ribosomes can attach consecutively on the same mRNA molecule b. • there are several open reading frames corresponding to a single gene transcript • chaperones help the newly-emerging polypeptides fold correctly d.
What does the 5 prime cap on the mature mRNA consist of? (Choose all that apply) cap proteins backwards, methylated G nucleotide polyA tail ribosome QUESTION 7 Which DNA regions are necessary to specify removal of an intron? (choose all that apply) cleavage site branch point 5' splice site 3' splice site U-rich sequence QUESTION 9 Which of the following can permit a single gene to produce several different proteins? (choose all that apply) multiple 5' capping sites alternative splicing...
QUESTION 13 What chemical group is at the end of an amino acid chain corresponding to the 3' end of the mRNA molecule? A. Peptide bond B.5 phosphate group C.3" hydroxyl group D. Amino (N-terminus) E. Carboxyl (C-terminus) QUESTION 14 Which of the following is true regarding pre-mRNA modifications/processing? O A. Alternative splicing allows for increased complexity and synthesis of protein isomers OB. The 5' cap is added after RNA polymerase dissociates from the gene OC. The poly A tail...
What is the function of the 3' poly-A sequence in eukaryotic mRNA? Select one: O a. Intron splicing signal. O b. Initial attachment site for ribosomes. O c. Translation termination. O d. Protection from cytosolic enzymes. What is the function of the 5' cap in eukaryotic mRNA? Select one: O a. Polyadenylation of the 5' end of the mRNA. b. Intron splicing signal. O c. It must be on the mRNA in order for the mature mRNA to be exported...
Answer the questions:
Question 11 Recognition/binding site of RNA polymerase is called a Receptorb. Promoter . Facilitatord. Terminator Question 12 .A specific factor helps RNA polymerase binding to promoters and transcribe genes a Delta b. Beta Gamma d. Sigma Question 13 ............ Promoters lack a TATA box are referred to as TATA less promoters, for example operon Housekeeping genes b. Functional genesc d. Structural genes Question 14 0.5 points Save Answer During "RNA processing" All of the exons are a....
25. What binds to a stop codon on a mRNA during translation? a. transcription factor c. termination factor b. tRNA d. transcription initiator 26. What is typically attached to the acceptor end of a tRNA? a. a protein b. an amino acid C a ribosome d. a nucleosome 27. During mRNA processing, what is put on the 3' end of a primary mRNA transcript? a. a poly-A tail b. a cap d. an intron c. an exon 28. Which of...
In humans, there are about 200 different types of cells. Why are your liver cells different from skin cells, or neurons, or muscle cells? During development, each cell accumulates different mutations changing their DNA They produce the same proteins but some of those proteins are denatured in each cell They have different DNA and thus, each cell produces different proteins They produce the same kind of proteins but not all proteins are active in each cell They have the same...
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