Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
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Textbook Question
Chapter 8, Problem 9MCQ
Two offspring cells are most likely to inherit which one of the following from the parent cell?
- a. a change in a
nucleotide in mRNA - b. a change in a nucleotide in tRNA
- c. a change in a nucleotide in rRNA
- d. a change in a nucleotide in DNA
- e. a change in a protein
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What genetic material in a living cell which is single stranded involved in the coding of genes for protein synthesis? *
1 point
a. DNA
b. RNA
C. mRNA
d. tRNA
The basic units of information that encode the
proteins needed to grow and function as a living
organism are called:
Select one:
a. Chromosomes
O b. Genes
c. Mutations
O d. Cells
O e. Mendel's postulates
Two cells use the same segment of DNA to produce two different proteins. The mRNA transcribed by cell A contains more introns than does the mRNA produced by cell B. Which of the following is true about the proteins of these cells?
A.
The protein for cell A is longer.
B.
The protein for cell A is shorter.
C.
Cell A produces more of this protein.
D.
Cell A produces less of this protein.
Chapter 8 Solutions
Microbiology: An Introduction
Ch. 8 - Briefly describe the components of DNA, and...Ch. 8 - DRAW IT Identify and mark each of the following on...Ch. 8 - Match the following examples of mutagens. Column A...Ch. 8 - The following is a code for a strand of DNA. a....Ch. 8 - Identify when (before transcription, after...Ch. 8 - Which sequence is the best target for damage by UV...Ch. 8 - You are provided with cultures with the following...Ch. 8 - Why are mutation and recombination important in...Ch. 8 - NAME IT Normally a commensal in the human...Ch. 8 - Match the following terms to the definitions in...
Ch. 8 - Match the following terms to the definitions in...Ch. 8 - Feedback inhibition differs from repression...Ch. 8 - Bacteria can acquire antibiotic resistance by all...Ch. 8 - Suppose you inoculate three flasks of minimal...Ch. 8 - Plasmids differ from transposons in that plasmids...Ch. 8 - Mechanism by which the presence of glucose...Ch. 8 - The mechanism by which lactose controls the lac...Ch. 8 - Two offspring cells are most likely to inherit...Ch. 8 - Which of the following is not a method of...Ch. 8 - Nucleoside analogs and ionizing radiation are used...Ch. 8 - Replication of the E. coli chromosome takes 40 to...Ch. 8 - Pseudomonas has a plasmid containing the mer...Ch. 8 - Ciprofloxacin, erythromycin, and acyclovir are...Ch. 8 - HIV, the virus that causes AIDS, was isolated from...Ch. 8 - Human herpesvirus-8 (HHV-8) is common in parts of...
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- Which molecule contains the genetic code? A. rDNA B. rRNA C.Ribosome D. mRNA E. tRNAarrow_forwardWhat type of molecule contains the site where amino acids link together to make a polypeptide? a. DNA b. mRNA c. rRNA d. tRNA An inborn error of metabolism is when a _____ causes a deficiency in a particular enzyme. a. genetic change b. protein deficiency c. vitamin deficiency d. viral diseasearrow_forwardWhich of the following statements about genes is incorrect? Select one: O a. During fertilization, both the sperm and the ovum contribute genes to the resulting fertilized egg. b. Genetic differences can result from changes in the DNA called mutations. O c. Genes correspond to segments of DNA. d. Under normal circumstances, each chromosome contains precisely one gene. e. Many genes contain the information needed for cells to synthesize enzymes and other proteins.arrow_forward
- You may have left high school thinking that the definition of a gene is: "a sequence of DNA that codes for a protein.” But that is not quite correct If that was in fact the only sequence of DNA that was transcribed, which of the following would not exist? 1. snRNA 2. ribosomes 3. tRNA 4. mRNA A. 1, 2 and 3 B. 1 and 3 C. 2 and 4 D. 4 only E. All of 1, 2, 3 and 4 are correctarrow_forwardWhat might best explain why the incidence of cancer increases as people age? Select one: a. mutations accumulate as people age b. cell division increases as people age c. protein synthesis increases as people age d. telomerase activity increases as people age e. ATP production increases as people agearrow_forwardWhat is the correct order of parts in a eukaryotic gene? A. promoter, intron, terminator, exon B. promoter, terminator, exon, intron C. promoter, intron, exon, terminator D. promoter, exon, intron, terminatorarrow_forward
- Which of the following statements best describes the outcome of a mutation? a. A mutation always results in a mutant genotype b. A mutation always results in a mutant karyotype c. A mutation always results in a mutant phenotype d. A mutation always results in a mutant proteinarrow_forwardwhich event contradicts the central dogma of molecular biology?arrow_forwardWhich mode of information transfer in the Centra Dogma does not occur in the real world (which is not physiological)? a. RNA to DNA b. DNA to protein c. RNA to Protein d. DNA to RNAarrow_forward
- What transcripts will be most affected by low levels of α- amanitin? a. 18S and 28S rRNAs b. pre-mRNAs c. 5S rRNAs and tRNAs d. other small nuclear RNAsarrow_forwardDuring translation, __________________. a. A cell divides to make 2 new cells b. A cell divides to make 4 new cells c. DNA is used as a template to create mRNA d. mRNA, rRNA, and tRNA work together to make proteinsarrow_forwardIn a nucleosome, what is the DNA wrapped around? A. mRNA B. Nucleolus protein. C. Ribosomes. D. Polymerase molecules. E. Histonesarrow_forward
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