Prescott's Microbiology
11th Edition
ISBN: 9781260211887
Author: WILLEY, Sandman, Wood
Publisher: McGraw Hill
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Chapter 42.4, Problem 3CC
What is
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What is a gene?
A)A molecule of DNA, which is transformed into a protein to be used by the cell
B)A molecule of RNA that is made into a functional protein to do work in a cell
C)A part of the cell that is assembled into an amino acid sequence, then folded into a proteinD)A region of DNA containing information for building a protein or RNA product
Using the question in the image below, identify the locations of each mutation in strains 1, 2, and 3
Which of the following options best depicts the flow of information when a gene
directs the synthesis of a cellular component?
A) RNA → DNA RNA →
protein
B) DNA
→ amino acid → RNA → protein
O C) protein
RNA DNA
D) DNA - TRNA → MRNA –→ protein
O E) DNA - RNA →
protein
Chapter 42 Solutions
Prescott's Microbiology
Ch. 42.1 - Why are the cells first fed lactose and then...Ch. 42.1 - What critical limiting factors are used in the...Ch. 42.1 - Prob. 2CCCh. 42.1 - What kinds of molecular changes result from...Ch. 42.1 - Prob. 4CCCh. 42.2 - Why is there interest in developing alternatives...Ch. 42.2 - What types of microbes are good candidates for the...Ch. 42.3 - What is the objective of the scale-up process and...Ch. 42.3 - What parameters can be monitored in a modern,...Ch. 42.3 - Which of the following are secondary metabolites:...
Ch. 42.4 - Why are modular genes particularly suitable as...Ch. 42.4 - Prob. 2MICh. 42.4 - Prob. 1CCCh. 42.4 - Prob. 2CCCh. 42.4 - What is metabolic engineering? Besides...Ch. 42.4 - What is high-throughput screening and why has it...Ch. 42.4 - Prob. 5CCCh. 42.5 - Prob. 1MICh. 42.5 - What is the Ti plasmid and how is it modified for...Ch. 42.5 - How is Bt toxin produced and why is it so widely...Ch. 42.5 - Prob. 3CCCh. 42.6 - Why are diatoms and magnetotactic bacteria of...Ch. 42.6 - Prob. 2CCCh. 42 - Prob. 1RCCh. 42 - Prob. 2RCCh. 42 - Prob. 3RCCh. 42 - Prob. 4RCCh. 42 - Prob. 5RCCh. 42 - Prob. 6RCCh. 42 - Prob. 7RCCh. 42 - Prob. 1ALCh. 42 - Prob. 2AL
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- 3)Which of the following statements are true? Choose all that apply a)There are multiple codons possible for nearly all amino acids b)Each stop codon also codes for an amino acid c)Each tRNA will base pair with only one codon d)The start codon also codes for an amino acid e)Each codon in mRNA codes for exactly one amino acid f)Each codon in tRNA codes for exactly one amino acid g)Each anticodon in tRNA pairs with exactly one codon h)Each tRNA carries exactly one type of amino acidarrow_forwardRibon enzymes are: a) catalysts for RNA splicing b)ribosomes which catalyze reactions c) the most common form of enzymes in cells d) unique to eukaryotes e) unique to prokaryotesarrow_forwardWhen the Oxford team of Ernst Chain and Nor- man Heatley had laboriously collected their first two grams of penicillin (probably no more than 2% pure!), Chain injected two normal mice with 1 g each of this preparation, and waited to see what would happen. The mice survived with no apparent ill effects. Their boss, Howard Florey, was furious at what he saw as a waste of good antibiotic. Why was this experiment important?arrow_forward
- Cytopathic 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_forwardE. coli would be a good model organism for which of the following processes? a) DNA replication b) how mitochondria get distributed to daughter cells during cell division c) how cells decode their genetic instructions to make proteins (translation) d) a and c e) a, b and carrow_forwardA protein was mutated at amino acid position 129. Which of the following mutations will least effect the protein's function? O a) A mutated to L b) A mutated to K O c) A mutated to G d) A mutated to Darrow_forward
- Which of the following best describes the central dogma of molecular biology? O A) MRNA is transcribed into DNA, which is then translated into a protein B) DNA is translated into MRNA, which is then transcribed into a protein O C) DNA is transcribed into mRNA, which is then translated into a protein O D) MRNA is translated into DNA, which is then translated into a protein E) DNA is replicated into MRNA, which is then transcribed into a proteinarrow_forwardIdentify the single most correct answer: a) Ribosome is an organelle found in both prokaryotes and eukaryotes. Ob) During conjugation a naked DNA molecule found in the surroundings gets into bacteria. c) Spontaneous mutation cannot result in the production of an altered protein. Od) Gene transfer from one species of bacteria to another (donor to recipient) represents horizontal gene transfer.arrow_forwardBoth DNA and RNA… a)move to different parts of the cell are b)nucleic acids c)are nucleic acids and information molecules d)are information molecules e)are nucleic acids, information molecules, and move to different parts of the cellarrow_forward
- All of these materials are needed for translation EXCEPT: O A) TRNA O B) ribosomes C) RNA polymerase D) MRNA E) amino acidsarrow_forwardThe complete set of RNA transcripts present in a cell under various conditions is called the: a) genome b) proteome c) transcriptome d) none of the abovearrow_forwardYou are a molecular biologist studying a defective human protein that is known to be the cause of a rare cancer. You isolate the suspected protein from a person with this cancer and compare it to the same protein in a person without the cancer. You discover that the protein isolated from the cancer patient is slightly smaller in size when compared to the protein from the unaffected patient. Furthermore, you discover that the protein from the cancer patient differs in almost every amino acid starting after the twenty-third amino acid. What is the likely explanation?arrow_forward
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