Loose-leaf Version for What Is Life? A Guide to Biology
4th Edition
ISBN: 9781319106317
Author: Jay Phelan
Publisher: W.H. Freeman & Co
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Chapter 6, Problem 5SA
Summary Introduction
To review:
The role of transcription and why translation is not the first step in using the information in the DNA.
Introduction:
The genetic material that is carried by each cell is guarded safely within the nucleus.
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Consider the following segment of a template
strand of DNA:
Part A
-ATA AGC TTC GAC-
What is the mRNA produced for the segment?
-UAU-UCG-AAG-CUC-
Part B Complete previous part(s)
• Part C
What is the mRNA if a mutation changes AGC to AAC?
Part D Complete previous part(s)
Part E
What is the MRNA produced if G is inserted at the beginning of the DNA segment?
The coding DNA strand of a gene has the following DNA sequence:
5’ ATGGCGACGATAATGTTGTGTGAGTGA 3’
1) Find the sequence of the mRNA that would be made from this gene.
2) Find the amino acid protein sequence that would be made from this gene
3) A mutation occurs at position 17 of the coding DNA strand, where the T is substituted with A (count from 5’ end of coding strand). Write the resulting mRNA and protein sequences. Show all your work!
Which of the following regulatory sequence allows transcription to continue?
a) Sequence 4
b) Sequence 1
c) Sequence 2
d) Sequence 3
Chapter 6 Solutions
Loose-leaf Version for What Is Life? A Guide to Biology
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Refer to the double stranded DNA molecule with the sequence below to answer the following questions: 5’ATATGGGTCTCGATAGGGCTGTTTTCTCCGGC 3’ 3’TATACCCAGAGCTATCCCGACAAAAGAGGCCG 5’ Which strand functions as the transcription template, the top one or the bottom one? Explain your reasoning. What is the mRNA transcript and polypeptide from this strand? In the space below, copy the DNA strand that is transcribed, and write the mRNA transcript and polypeptide chain below it. Align the mRNA and polypeptide so that it is clear which DNA bases they came from. DNA strand: mRNA: amino acid sequence:arrow_forwarda) DNA fragment with instructions b) code c) is transcribed but not translated d) non-coding e) sometimes encoding sometimes not gene, 5' UTR, exon, intron, ATTATTarrow_forwardA segment of template DNA is known to contain the following base sequence: 3' GATACCTTTGTGTAGTCATCTT 5' a) Write the mRNA that would be transcribed from this DNA fragment. b) Highlight the starter and the stopper in your mRNA sequence. Write the sequence of amino acids which would be encoded in translation. asap pleasearrow_forward
- A certain template DNA strand has the following nucleotide sequence: 3’-TACTCGATGCTGTGCGAT-5’ a) What would be the nucleotide sequence of the complementary nontemplate DNA strand? What is this process called and where does this occur in the eukaryotic cell? b) Take the template strand through the process of transcription. What is the resulting strand called and where does this process occur in a eukaryotic cell. c) Take the template strand through the process of translation including the location in the cell. You should finish with a polypeptide chain. You will need to use the Genetic code found in your notes/bookarrow_forwardA fragment of bacterial DNA reads: 3’ –TACCTATAATCTCAATTGATAGAAGCACTCTAC– 5’ Assuming that this fragment is the template strand, what is the sequence of mRNA that would be transcribed? (Hint: Be sure to identify the initiation site.)arrow_forwardBelow is a template strand of DNA. Assume the transcription start site is outside of this sequence so that the whole sequence is transcribed. After the mRNA is made, what amino acid sequence would be translated from this sequence? Translation begins at the first start codon of the mRNA. DNA template strand: 5’ ...ACTGATGCCCATGGC... 3’ a)Met-Pro-Met b)Ala-Met-Gly-Ile-Ser c)Thr-Asp-Ala-His-Gly d)Met-Gly-Ile-Serarrow_forward
- The following is a portion of an mRNA sequence: 3’ –AUCGUCAUGCAGA-5’ a)During transcription, was the adenine at the left-hand side of the sequence the first or the last nucleotide used to build the portion of the mRNA shown? Explain how you know. b)Write out the sequence and polarity of the DNA duplex that encodes this mRNA segment. Label the template and coding DNA strands. c)Identify the direction in which the promoter region for this gene will be located.arrow_forwardWhich of the following is NOT a protein that aids the ribosome during translation?Question 28 options: A) charging factor B) initiation factor C) release factor D) elongation factorarrow_forwardWhich statement is false: A) Each type of protein ( ex: hemoglobin vs trypsionngen) varies in the length and amino acid sequence of its peptide B) After the rpocess of transcription is complete, the mRNA that is produced will continue being tranlsated by ribosomes for the rest of the cells life. mRNA never breaks down C) A ribosome will bind to an mRNA and will translate the sequence by reading one codon at a time and adding one amino acid to the peptide chain. It will stop the translation once it encounters a stop codon D) The gene for a protein provides the information on the legth of the peptide, along w the amino acid sequence so the protein can be synthesized by a ribosome E) Once mRNA has left the nucleus, ribosomes will bind to it and will follow the instructions in its sequence to make the new protienarrow_forward
- Which is the coding strand? Which is the template strand? What is the direction of mRNA transcription by RNA-Polymerase for this gene?arrow_forwardA given coding strand sequence in a Eukaryote is as follows 5'GGGAATATAA GACCGATGGA GGGTACAG CCCTATCAC GATACGCAGG ATAGCAGCA 3" a) Mark the promoter in blue and transcribe from the G after the promoter. b) Translate the mRNA made c) The mRNA made by the cell was 10 nucleotides shorter than what you have made. What could have happened? d) EXTRA practice: A particular triplet of bases in the coding strand of DNA is 5'GAC 3'. What is the amino acid for this codon and will be the anticodon on the tRNA that binds the mRNA codon?arrow_forwardA single template strand of a DNA molecule is represented by 3’atgtaccatgcgcaaatttaaaggccc5’. a) Using the same strand above as a template, write the pre-mRNA transcript. b) List the molecules that must be present for DNA to be transcribed. Briefly describe their function. c) What are three modifications that happen to pre-mRNA before it becomes mature mRNAarrow_forward
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