Microbiology With Diseases By Taxonomy (6th Edition)
6th Edition
ISBN: 9780134832302
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 7, Problem 23MC
Summary Introduction
Introduction:
Ligases are also called as “synthetases”. Ligases catalyze the joining of two strands or molecules together by creating some types of bonds between them. Ligases play a very important role during
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Treating a cell with a drug to stop tRNA from doing its job would mean what?
A. that ribosomes would fall apart
B. that sugars woulf not be added to proteins
C. that nothing would be available to translate
D. that amino acids would not be brought to the growing protein.
A single template strand of a DNA molecule is represented by
3’atgtaccatgcgcaaatttaaaggccc5’.
a) Imagine that AAG is an INTRON in the original DNA template strand above. Write the mature mRNA strand after the three modifications?
b) Write the amino acid sequence of your mature mRNA.
c) List the molecules involved in translation and briefly describe their function.
Use your genetic code (codon) table to answer the next two questions:
What type of mutation would result if the sequence of a gene were altered so that the sequence of the mRNA was changed from:
AUGCCGUGCAGUAAC to AUGCCAUGCAGUAAC
A) a silent mutation
B) a nonsense mutation
C) a frame-shift mutation
D) a missense mutation
E) a base insertion mutation
Chapter 7 Solutions
Microbiology With Diseases By Taxonomy (6th Edition)
Ch. 7 - DNA replication requires a large amount of energy,...Ch. 7 - In bacteria, polypeptide translation can begin...Ch. 7 - Prob. 3TMWCh. 7 - Prob. 4TMWCh. 7 - Clinical Case Study Deadly Horizontal Gene...Ch. 7 - Which of the following is most likely the number...Ch. 7 - Which of the following is a true statement...Ch. 7 - Prob. 3MCCh. 7 - Prob. 4MCCh. 7 - Prob. 5MC
Ch. 7 - Prob. 6MCCh. 7 - Prob. 7MCCh. 7 - Prob. 8MCCh. 7 - Prob. 9MCCh. 7 - Prob. 10MCCh. 7 - Which of the following is not a mechanism of...Ch. 7 - Prob. 12MCCh. 7 - Prob. 13MCCh. 7 - Which of the following are called jumping genes?...Ch. 7 - Prob. 15MCCh. 7 - Prob. 16MCCh. 7 - Prob. 17MCCh. 7 - Prob. 18MCCh. 7 - Prob. 19MCCh. 7 - Prob. 20MCCh. 7 - Prob. 21MCCh. 7 - Prob. 22MCCh. 7 - Prob. 23MCCh. 7 - Prob. 24MCCh. 7 - The trp operon is repressible. This means it is...Ch. 7 - The three steps in RNA transcription are...Ch. 7 - Prob. 2FIBCh. 7 - Prob. 3FIBCh. 7 - Prob. 4FIBCh. 7 - An operon consists of ____________,...Ch. 7 - Prob. 6FIBCh. 7 - A daughter DNA molecule is composed of one...Ch. 7 - Prob. 8FIBCh. 7 - Prob. 9FIBCh. 7 - ____________ is a recombination event that occurs...Ch. 7 - Prob. 11FIBCh. 7 - Prob. 12FIBCh. 7 - Prob. 1SACh. 7 - Prob. 2SACh. 7 - Prob. 3SACh. 7 - Polypeptide synthesis requires large amounts of...Ch. 7 - Prob. 5SACh. 7 - Prob. 6SACh. 7 - Prob. 7SACh. 7 - Prob. 8SACh. 7 - Describe how DNA is packaged in both prokaryotes...Ch. 7 - Prob. 10SACh. 7 - Prob. 11SACh. 7 - Prob. 12SACh. 7 - On the figure below, label DNA polymerase I, DNA...Ch. 7 - Prob. 2VICh. 7 - Prob. 3VICh. 7 - If molecules of mRNA have the following nucleotide...Ch. 7 - A scientist uses a molecule of DNA composed of...Ch. 7 - Prob. 3CTCh. 7 - Prob. 4CTCh. 7 - Prob. 5CTCh. 7 - Suppose that the E. coli gene for the lac operon...Ch. 7 - Prob. 7CTCh. 7 - Prob. 8CTCh. 7 - Prob. 9CTCh. 7 - How can knowledge of nucleotide analogs be useful...Ch. 7 - The endosymbiotic theory states that mitochondria...Ch. 7 - Prob. 12CTCh. 7 - Prob. 13CTCh. 7 - Prob. 14CTCh. 7 - What DNA nucleotide triplet codes for codon UGU?...Ch. 7 - Prob. 17CT
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- Transcription is similar to DNA replication because both processes_______ . a. use the same enzyme b. copy both strands c. require the same nucleotides d. proceed in the 5′ to 3′ directionarrow_forwardThe role of p53 in normal cells is toa. create cancer-blocking mutations.b. trigger unrestrained cell division.c. detect damaged DNA.d. splice exons together in the correct sequence.arrow_forwardWhich is true about eukaryotic cDNA? Choose all that apply a. it is single stranded b. it is made up of only introns c. it is constructed from mRNA that is reverse transcribed d.arrow_forward
- Translation of the dna sequence AAGCTGGGA would result in: A) a DNA strand with the base sequence TTCGACCCT B) an mRNA strand with the sequence TTCGACCCT C) a sequence of three amino acids linked by peptide bonds D) an mRNA strand with the sequence UUGCACCCUarrow_forwardThe Kozak rules determine a. the choice of the start codon in complex eukaryotes. b. the choice of the start codon in bacteria. c. the site in the mRNA where translation ends. d. how fast the mRNA is translated.arrow_forwardWhich statement is true of the translocation phase of elongation during protein synthesis? a. The empty tRNA moves to the A site of the ribosomal complex. b. The empty tRNA moves to the T site of the ribosomal complex. c. The dipeptide moves from the A site to the P site of the ribosomal complex. d. The dipeptide moves from the P site to the A site of the ribosomal complex.arrow_forward
- Which of the following best describes tRNA? a. Provides the instructions for the amino acid sequence of a polypeptide b. Complexes with ribosomal proteins to form ribosomes c. Used for eukaryotic RNA processing d. Transports amino acids to ribosomes during translationarrow_forwardGiven the following DNA sequence: ATCGGATCCGGTTAACTATTTAAAGCA a. predict the compliment strand of dna (coding strand) b. predict the transcribed product of the coding strand (mRNA transcript) c. given the genetic code table, predict the amino acid sequence of the transcript d. predict the amino acid sequence if the A underlined became deletedarrow_forwardRibosomal RNA ____________________. a. Carries amino acids to the ribosome b. Carries information from the DNA to the ribosome c. Helps make up the ribosome d. Carries oxygen to cellsarrow_forward
- Messenger RNA ____________________. a. Carries amino acids to the ribosome b. Carries information from the DNA to the ribosome c. Helps make up the ribosome d. Carries oxygen to cellsarrow_forwardIf a eukaryotic mRNA has failed to have a cap attached to its 5' end, what would the negative consequence(s) be? I chose b and got this questions wrong, why is this wrong? a. The mRNA would not properly exit the nucleus. b. The mRNA would not properly bind to a ribosome. c. The mRNA would not receive a poly A tail. d. The mRNA would not use the correct start codon. e. Both a and b are correct.arrow_forwardSpecific amino acids attached to molecules of tRNA, while antocodons align with codons of mRNA describes, in part a.replication b.transcription c.translation d.recombinant DNA formation e.cellular activationarrow_forward
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