Modified MasteringMicrobiology with Pearson eText -- ValuePack Access Card -- for Microbiology with Diseases by Body System
5th Edition
ISBN: 9780134608785
Author: Robert W. Ph.D. Bauman
Publisher: PEARSON
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Chapter 7, Problem 21MC
Summary Introduction
Introduction:
Transcription is a process where the DNA molecule is converted into RNA molecule with the help of enzymes. The RNA molecule in turn directs the protein synthesis. Prokaryotic transcription is a mechanism in which the messenger RNAs are produced from the DNA. The mRNA was then subjected to the translation process for the protein production. Whereas in eukaryotes, both the transcription and translation process occur simultaneously in the cytoplasm.
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Students have asked these similar questions
What is an operon ?
a. A series of genes controlled by the same operator
b. A series of genes on the same mRNA molecule
c. A series of genes that all have the same function
d. A series of genes all regulated by the same repressor
Which of the following is an example of a transcription factor?
A) gene
B) a repressor
C) a ribosome
D) an intron
Which of the following statements about gene regulation is false?
a. An operon contains DNA sequences that regulates its own expression.
b. The operator region can only be bound by an activator protein.
c. Transcription factors can affect the binding of RNA polymerase to the promoter.
d. A repressor is a transcription factor that hinders gene transcription.
Chapter 7 Solutions
Modified MasteringMicrobiology with Pearson eText -- ValuePack Access Card -- for Microbiology with Diseases by Body System
Ch. 7 - DNA replication requires a large amount of energy,...Ch. 7 - Vibrio vulnificus Infection Greg enjoyed Floridas...Ch. 7 - Prob. 2TMWCh. 7 - Prob. 3TMWCh. 7 - Why is the genetic ancestry of microbes much more...Ch. 7 - Prob. 1CCSCh. 7 - Which of the following is most likely the number...Ch. 7 - Which of the following is a true statement...Ch. 7 - A plasmid is ___________. a. a molecule of RNA...Ch. 7 - Prob. 4MC
Ch. 7 - Prob. 5MCCh. 7 - Which of the following molecules functions as a...Ch. 7 - Prob. 7MCCh. 7 - Prob. 8MCCh. 7 - The Ames test ___________. a. uses auxotrophs and...Ch. 7 - Which of the following methods of DNA repair...Ch. 7 - Prob. 11MCCh. 7 - Prob. 12MCCh. 7 - Which of the following statements is true? a....Ch. 7 - Prob. 14MCCh. 7 - Although two cells are totally unrelated, one cell...Ch. 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 - Before mutations can affect a population...Ch. 7 - Prob. 25MCCh. 7 - Fill in the Blanks 1. The three steps in RNA...Ch. 7 - Fill in the Blanks 2. A triplet of mRNA...Ch. 7 - Fill in the Blanks 3. Three effects of point...Ch. 7 - Fill in the Blanks 4. Insertions and deletions in...Ch. 7 - Fill in the Blanks 5. An operon consists of...Ch. 7 - Prob. 6FIBCh. 7 - Prob. 7FIBCh. 7 - Fill in the Blanks 8. A gene for antibiotic...Ch. 7 - Fill in the Blanks 9. ______ are nucleotide...Ch. 7 - Fill in the Blanks 10. ____________ is a...Ch. 7 - Fill in the Blanks 11.________ RNA carries amino...Ch. 7 - Fill in the Blanks 12. ______ RNA and ______ RNA...Ch. 7 - How does the genotype of a bacterium determine its...Ch. 7 - List several ways in which eukaryotic messenger...Ch. 7 - Compare and contrast intrans and exons.Ch. 7 - Polypeptide synthesis requires large amounts of...Ch. 7 - Describe the operon model of gene regulation.Ch. 7 - Prob. 6SACh. 7 - Prob. 7SACh. 7 - Describe the formation and function of mRNA, rRNA,...Ch. 7 - Prob. 9SACh. 7 - Explain the central dogma of genetics.Ch. 7 - Compare and contrast the processes of...Ch. 7 - Fill in the following table:Ch. 7 - On the figure below, label DNA polymerase I, DNA...Ch. 7 - Prob. 2VICh. 7 - The drugs ddC and AZT are used to treat AIDS....Ch. 7 - If molecules of mRNA have the following nucleotide...Ch. 7 - A scientist uses a molecule of DNA composed of...Ch. 7 - Explain why an insertion of three nucleotides is...Ch. 7 - How could scientists use siRNA to turn off a...Ch. 7 - Prob. 5CTCh. 7 - Prob. 6CTCh. 7 - Prob. 7CTCh. 7 - Prob. 8CTCh. 7 - Corynebacterium diphtheriae, the causative agent...Ch. 7 - Prob. 10CTCh. 7 - The endosymbiotic theory states that mitochondria...Ch. 7 - Hydrogen bonds between complementary nucleotides...Ch. 7 - On average, RNA polymerase makes one error for...Ch. 7 - We have seen that wobble makes the genetic code...Ch. 7 - If a scientist synthesizes a DNA molecule with the...Ch. 7 - What DNA nucleotide triplet codes for codon UGU?...Ch. 7 - Suppose you want to insert into your dog a gene...Ch. 7 - Using the following terms, fill in the following...
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- Write a brief essay that discusses why you think gene-regulatory systems evolved in bacteria, and why genes related to common functions are found together in operons.arrow_forwardIn Eukaryotes, DNA is a long molecule inside a tiny nucleus. a. How can this long chain fit in such space? b. How does it affect gene expression?arrow_forwardYamanaka’s 2012 Nobel Prize was awarded for hisa. successful cloning of Dolly the sheep.b. demonstration that transcription factors canepigenetically reprogram adult cells.c. invention of somatic cell nuclear transfer technology.d. use of cloning to cure cystic fibrosisarrow_forward
- The 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_forwardd. give an example of an operon that is under negative control e. repressor f. give an example of a repressor molecule g. activator h. give an example of an activatorarrow_forwardCytopathic effects (CPE) are visible changes in cells due to: A)viral infection B)mutations C)bacterial infections D)the cell's genes are being expressedarrow_forward
- How do repressors reduce transcription of an operon? A) recruit RNA polymerase to promoters B) block the ability of RNA polymerase to bind a promoter C) break phosphodiester bonds in the DNA D) inhibit the activity of the ribosomearrow_forwardIf a cell's DNA was mutated such that it lost the promoter of a gene, you would expect: a. That ribosomes wouldn’t bind to that gene b. No effect since the promoter doesn't have any coding information for the amino acids in the polypeptide c. Ribosomes would never stop translating that gene d. Transcription factors for that gene would no longer bind to activate expression of that gene e. tRNA would no longer bind to the codons of that genearrow_forwardIn a bacterial operon, the active repressor bind to the A. promoter. B. terminator. C. operator. D. regulator.arrow_forward
- Which of the following is true of transcription factors? A)The same transcription factors are found in all cell types. B)They can increase or decrease gene expression. C)They are a type of cis-acting element. D)They bind only to promoters.arrow_forwardExamining the DNA of a cancerous cell, a scientist would find strong expression of A. siRNAs. B. rRNAs. C. oncogenes. D. transcription factors.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
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