Biochemistry
6th Edition
ISBN: 9781305577206
Author: Reginald H. Garrett, Charles M. Grisham
Publisher: Cengage Learning
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Chapter 29, Problem 6P
Interpretation Introduction
Interpretation:
The length of the promoter in nm, the number of turns of B-DNA in it and the number of nucleosomes connected to it need to be determined.
Concept introduction:
In genetic science, a promoter could be a region of
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Please help with all parts of A, B, C, D
2. You are studying the function of a messenger RNA named Genetixrox and want to label themRNA with a radioactive atom. Assume the mRNA is long and contains all four standardRNA bases. Assume that the cell cannot convert ribonucleotides to deoxyribonucleotides (orvice versa).A. Will you generate radioactive Genetixrox mRNA with 3H-threonine? Threonine is an aminoacid. Answer yes or no, and provide a one sentence rationale.B. Will you generate radioactive Genetixrox mRNA with 3H-adenosine triphosphate? Answeryes or no, and provide a one sentence rationale.C. Will you generate radioactive Genetixrox mRNA with 3H-deoxyadenosine triphosphate?Answer yes or no, and provide a one sentence rationale.D. Will you generate radioactive Genetixrox mRNA 12C-with adenosine triphosphate? Answeryes or no, and provide a one sentence rationale
Part I. Structure-Function Relationships in Genes
1. Consider the "two-line model" of a gene shown below - each line represents one
strand of a DNA double helix, and the transcription start site is indicated as +1. Use the
two-line models provided when answering the following questions.
3'
5'
+1
Assume that you know RNA polymerase will move to the right during transcription.
On the diagram above, do the following:
• Label "upstream" and "downstream" on this gene
• Label where you would find the promoter
min
I
• Draw a box where you would expect to find the TATA box
• Draw a third line below the model representing the RNA transcript (label the
ends!)
• Label one of the DNA strands as the template strand
3'
2. Now, let's try that again! This time assume that you know RNA polymerase will move
to the left during transcription. Repeat the same tasks as before on the diagram below:
5'
5'
3'
+1
I
I
5'
3'
Row
A
B.
C
D
Process 1
transcription
transcription
translation
Protein Synthesis in an Animal Cell
Select the row below that correctly identifies the name of Process 1 as well as a sequence that could represent Structure 1.
Sequence of Structure 1
CGA ATT GTA CAA
CGA AUU GUA CAA
CGA ATT GTA CAA
CGA AUU GUA CAA
translation
Structure 1
Process 1
Structure 2
ORA
Process 2
Chapter 29 Solutions
Biochemistry
Ch. 29 - Prob. 1PCh. 29 - The Events in Transcription Initiation Describe...Ch. 29 - Substrate Binding by RNA Polymerase RNA polymerase...Ch. 29 - Comparison of Prokaryotic and Eukaryotic...Ch. 29 - Prob. 5PCh. 29 - Prob. 6PCh. 29 - Prob. 7PCh. 29 - Alternative Splicing Possibilities Suppose exon 17...Ch. 29 - Prob. 9PCh. 29 - Prob. 10P
Ch. 29 - Post-transcriptional Modification of Eukaryotic...Ch. 29 - Prob. 12PCh. 29 - Prob. 13PCh. 29 - The Lariat Intermediate in RNA Splicing Draw the...Ch. 29 - Prob. 15PCh. 29 - Prob. 16PCh. 29 - Prob. 17PCh. 29 - Prob. 18PCh. 29 - Figure 29.15 highlights in red the DNA phosphate...Ch. 29 - Chromatin decompaction is a preliminary step in...
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- Alternative Splicing Possibilities Suppose exon 17 were deleted from the fast skeletal muscle troponin T gene (Figure 29.46). How many different mRNAs could now be generated by alternative splicing? Suppose that exon 7 in a wild-type troponin T gene were duplicated. How many different mRNAs might be generated from a transcript of this new gene by alternative splicing?arrow_forwardWhich statements are true? Explain why or why not.1 The consequences of errors in transcription areless severe than those of errors in DNA replication.2 Since introns are largely genetic “junk,” they do nothave to be removed precisely from the primary transcriptduring RNA splicing.3 Wobble pairing occurs between the first positionin the codon and the third position in the anticodon.4 During protein synthesis, the thermodynamics ofbase-pairing between tRNAs and mRNAs sets the upperlimit for the accuracy with which protein molecules aremade.5 Protein enzymes are thought to greatly outnum-ber ribozymes in modern cells because they can catalyzea much greater variety of reactions and all of them havefaster rates than any ribozyme.arrow_forwardMatching Match each item with the correct statement below. Not all terms will be used a. 5' GTP cap f. RFLPs b. Target copy g. sticky ends c. Ligase h. cloned DNA d. Cas-9 i recombinant DNA j. ampicillin e. Host cell 1. A cell (usually a bacteria) that has a gene put in it so the gene can be cloned 2. An example of a post-transcriptional modification of mRNA 3. Sections of DNA that vary between individuals. These can be used for DNA fingerprinting 4. May be used following transformation to kill off cells that a gene didn't enter 5. Molecule of DNA created during PCR that is the desired length 6. A molecule of DNA that comes from two different sources that are spliced together 7. Ends of DNA cut by a restriction enzyme where not all nucleotides are paired (i.e. ends are uneven) 8. Protein that works with CRISPR to cut DNA at a specific spotarrow_forward
- All about splicing A. snRNPs interactions will bring the 5' and 3' splice sites together in the pre-mRNA B. lariat formation is necessary to bring the branch site with the 5' splice site of the intron C. an unstable 5'P and 2'OH phosphodiester bond helps form the lariat D. exon 5' splice site consensus sequence GU and its 3' splice site AG are recognized by snRNPs E. various types of snRNPs and the pre-RNA come together to form the spliceosome A, B, C, E only A, B, C, D, E A, B, C only B, C, D, E onlyarrow_forwardAll about splicing A. snRNPs interactions will bring the 5' and 3' splice sites together in the pre-mRNA B. lariat formation is necessary to bring the branch site with the 5' splice site of the intron C. an unstable 5'P and 2'OH phosphodiester bond helps form the lariat D. exon 5' splice site consensus sequence GU and its 3' splice site AG are recognized by snRNPs E. various types of snRNPs and the pre-RNA come together to form the spliceosome B, C, D, E only A, B, C, E only A, B, C, D, E A, B, C onlyarrow_forwardRegulation of Genes and Their products 1. Given the following genotypes, explain how the mutation (identified by a (-) superscript) wil affect E. coll grown in lactose medium. Will the lac operon be on or off? Will there be a complete set of gene products from the lac operon? What will be the implication of the missing gene product, if ever? Will the cell be able to survive in the lactose medium or not? a. I+p+o+z- y+ b. i- p+o+z+y+ c. i+p+o- z+y+ d. i+p- o+z+y+ 2. In terms of the trp operon, differentiate between two normal bacterial cultures, one grown in a medium supplied with tryptophan and the other medium without tryptophan. 3. Experiments show that mutations at gene E lead to non-repressible transcription of trp genes. Why?arrow_forward
- please help molecular biology technique Gene cloning & identification that have been used to study the protein Epidermal growth factor receptor I need to following using 1 journal article. please provide the link in the end i will appreciate it. and provide the answer in 1-3 paragraph per each part part 1 Detail the technique used to study this protein. part 2 What were the results reported for the protein using this technique (clear understanding of the set of results.arrow_forwardTrue or False? Eukaryotic genomes are organized into operons; each operon consists of a series of genes which code for enzymes involved in a metabolic pathway, under the transcriptional control of a single promoter sequence .arrow_forwardDrawing of a eukaryotic gene. Include labeled parts: 3 exons 2 introns Promoter region including the consensus sequence TATA box Transcription start site Translation start site 5' Untranslated Region 3' Untranslated Region 3' Cleavage sitearrow_forward
- Bacteria or Eukaryotes? Formation of a termination loop within the transcript Alternative splicing of transcripts Translation beginning before transcription is complete Cleavage following the AAUAAA signal Direct binding of RNA polymerase to promoterarrow_forwardPlease answer both question.its all a one question.otherwise I will give downvote. Below is a double strand DNA sequence contain a gene and it will go under transcription, suppose that the 3/ → 5/ is the template strand: 3/-TAC-GAC-CGT-TGG-CTT-CTG-TGT-AGG-TAT-ACC-GAT-ACT-5/ 5-/ATG-CTG- GCA-ACC-GAA-GAC-ACA-TCC-ATA-TGG-CTA-TGA-3/ 1- Write down the mRNA transcript with direction of ends of the strand? 2- Construct the resulted polypeptide chain from translation of the mRNA above based on the following codons translation below AUG: Methionine GCA: Alanine ACC: Threonine UGA: write its name GAA: Glutamic acid GAC: Aspartic acid CUG: Leucine ACA: Threonine UCC: Serine AUA: Isoleucine UGG: Tryptophan CUA: Leucinearrow_forwardPoint mutations in multiple tumor suppressor proteins have been linked to cancer. For example changes in the gene for adenomatous-polyposis-coli protein (APC gene) may result in colorectal cancer. Consider the following DNA sense strand. 3'-TAC CGG TTG TGA AGC TGA ATC-5' (i) (ii) (iii) (iv) Derive the mRNA molecule from the given DNA strand sequence above, paying attention to the polarity of the molecule. Write down the polypeptide chain sequence arising from the mRNA molecule of the question above, using the table of the genetic code (Table Q1 overleaf) and indicate the C- and the N-terminus of the peptide chain. Point mutations of a cytosine (C) often lead to the dysfunction of the APC protein. Write down all possible polypeptide chains that can result from all possible DNA mutations of cytosines, disregarding a mutation in the MET/START and STOP codons. I Specify which of the point mutations identified in (d) are redundant?arrow_forward
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