0 0 0 0 0 a mutation in a 5' or 3' splice site must alter the sequence of the protein encoded by a gene a missense mutations replaces one amino acid with a different amino acid a mutation in a promoter is unlikely to alter the sequence of the polypeptide encoded by a gene a mutation in a transcriptional terminator is unlikely to alter the sequence of a protein encoded by a gene. a frameshift mutation changes the sequence of a protein

0 0 0 0 0 a mutation in a 5' or 3' splice site must alter the sequence of the protein encoded by a gene a missense mutations replaces one amino acid with a different amino acid a mutation in a promoter is unlikely to alter the sequence of the polypeptide encoded by a gene a mutation in a transcriptional terminator is unlikely to alter the sequence of a protein encoded by a gene. a frameshift mutation changes the sequence of a protein

Name: Which of the following statements is false?a mutation in a 5' or 3' s
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Description: Which of the following statements is false?a mutation in a 5' or 3' splice site must alter the sequence of the protein encoded by a genea missense mutations replaces one amino acid with a different amino acida mutation in a promoter is unlikely to a

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter9: Gene Expression And Gene Regulation

Section: Chapter Questions

Problem 18QP: The following is a portion of a protein: met-trp-tyr-arg-gly-pro-thr-Various mutant forms of this...

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Which of the following statements is false? a mutation in a 5' or 3' splice site must alter the sequence of the protein encoded by a gene a mutation in a transcriptional terminator is unlikely to alter the sequence of a protein encoded by a gene. a mutation in a promoter is unlikely to alter the sequence of the polypeptide encoded by a gene a missense mutations replaces one amino acid with a different amino acid a frameshift mutation changes the sequence of a protein 000 0
A bacterial species has a hypothetical sigma promoter that has the following sequence: TTGGCA - 18 bases - TATAAT What change in the level of transcription would there be if the sequence was mutated to: TTCGCA -18 bases -TATAAT O The mutation would bind the promoter to the consensus and produce normal levels of transcription O The mutation would inhibit the promoter thereby inhibiting transcription The mutation would move the promoter away from consensus and reduce the level of transcription O No change the consensus TATAAT sequence in the same. D00 F3 F4 F5 F6 F7 F8 F9 % & 5 6 7 8 9 %24
Select all the possible mutation types for the following observed phenotype resulting from a mutation in a coding gene: A protein is made but is shorter with an abnormal shape, and no enzymatic activity. a non conservative missense mutation O an in-frame indel of 1 amino acid Oa frameshift a nonsense mutation Oa mutation in one splice site
You are investigating the impact of a gene mutation on the structure of the encoded protein and find that the encoded protein is substantially longer than normal, with the extra amino acids embedded within the normal amino acid sequence (not at either end). What type of mutation could cause this? Group of answer choices Mutation in a termination signal Mutation in the first AUG near the 5’ end Mutation at a splice site Mutation in the promotor Mutation in the poly-A signal
A bacterial species has a hypothetical sigma promoter that has the following sequence: TTGGCA - 18 bases - TATAAT What change in the level of transcription would there be if the sequence was mutated to: TTCGCA -18 bases -TATAAT Group of answer choices 1.The mutation would inhibit the promoter thereby inhibiting transcription 2.No change the consensus TATAAT sequence in the same. 3.The mutation would move the promoter away from consensus and reduce the level of transcription 4.The mutation would bind the promoter to the consensus and produce normal levels of transcription
A bacterial species has a hypothetical sigma promoter that has the following sequence: TTGGCA - 18 bases - TATAAT What change in the level of transcription would there be if the sequence was mutated to: TTCGCA -18 bases -TATAAT 1.The mutation would move the promoter away from consensus and reduce the level of transcription 2.No change the consensus TATAAT sequence in the same. 3.The mutation would bind the promoter to the consensus and produce normal levels of transcription 4.The mutation would inhibit the promoter thereby inhibiting transcription
The sigma factor protein's role in transcription in E. coli includes which of the following? None of the answer options are correct. plays a role in transcription termination forms part of the core enzyme required for transcription initiation helps the siRNA to bind to the promoter All of the answer options are correct. contributes to the proof-reading activity of RNA polymerase And The role of tRNA is to serve as an intermediate in the decoding of genes. serve as general translational components of the ribosome. facilitate protein trafficking in protein secretion. facilitate splicing of pre-messenger RNAs. act as vehicles bringing amino acids to the site of protein synthesis. None of the answer choices are correct.
"Upstream" "Downstream" Exons Start of transcription Termination codon 5 3' Promoter initiator codon Introns Polyadenylation signal (intervening sequences) 5' untranslated region 3' untranslated region Direction of transcription Please study the diagram above on eukaryotic gene expression. In order to provide instructions for gene expression, a eukaryotic gene should have the following sequences except for O A. Promoter B. Start codon also known as initiator codon C. Splicing signals (dinucleotide sequence in the intron) O D. 5' CAP sequence
The diagram below shows an imaginary eukaryotic structural gene containing two exons. The exon nucleotides are numbered beginning at the transcription start site and a portion of the intron is not shown to save space: Help Center? transcription start site promoter U STACAGTATAAATGAATTAATTGACGTATGTCAATCGGTAAGT...TCAGGTACT U UUU} Phe UUG} Leu exon 1 3 ATGTCATATTTACTTAATTAACTGCATACAGTTAGCCATTCA...AGTCCATGAATGACTTATGTGCGGTTATTTACTGAT... Second letter C Predict the amino acid sequence of the polypeptide encoded by this structural gene. The genetic code is provided below.
Prokaryotic cells can have more than one functional start codon per mRNA because There are multiple answers A prokaryotic promotes consist of two separated sequences: the -30 box and the -10 box B they make polycistronic RNA C both transcription and translation happen in the same cellular compartment D prokaryotic ribosomes bind to the Shine-Delgarno sequence E the activity of the lac repressor is regulated based on the physiologic condition of the cell
Which of the following characterize RNA polymerase Il transcriptional termination in eukaryotes? Endonuclease cleavage of the RNA transcript and 5' to 3' exonuclease activity a protein known as Ratl None of the provided answers, transcriptional termination occurs in prokaryotes. Recognition of the transcriptional stop codon by a release factor. Hairpin structure formation on the newly synthesized RNA molecule which disrupts the DNA-RNA hybrid at a poly-U RNA sequence Binding of the Rho protein.
Which of the following will result in an INCREASE in the levels (# of molecules) of the beta-galactosidase protein in bacteria? A mutation that disrupts the RNA coding region for lacZ A mutation that disrupts the promoter for the lac repressor (P+) A mutation that dirsrupts the RNA coding region for the lac repressor (lacl) A mutation that disrupts the lac protmoter (PL+) A mutaiton that disrupts the lac operator (OC) 00000