BIOLOGY: CONCEPTS&INVEST. (LL)
5th Edition
ISBN: 9781264706983
Author: Hoefnagels
Publisher: MCG
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Chapter 17, Problem 7MCQ
Summary Introduction
Introduction:
With the advances achieved in the field of
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Which of the following best describes the mechanism of action of the antibiotic streptomycin?
A. it disrupts protein synthesis in resistant bacteria.
B. Streptomycin inhibits cell wall synthesis in all bacterial species.
C. Streptomycin creates mutations in bacteria which cause them to become resistant.
D. It disrupts protein synthesis in nonresistant bacteria.
A transducing particle injects all of the DNA that it contains into a bacterial cell. Which of the following are TRUE? A. The bacterium becomes Hfr B. The bacterium becomes F+ C. The bacterium immediately acquires new functions as the injected DNA is rapidly transcribed and translated into mRNA and proteins D. This injected DNA can integrate into the bacterium’s genome through a process called recombination
In Hershey and Chase’s experiment investigating which biological molecule carries genetic information, they found that phage DNA with radiolabeled phosphorus was retained in bacterial cells after transduction. To conclude that DNA is the genetic material, what assumption did they have to make?
A. Protein does not enter the bacterium during transduction.
B. DNA does not stay in the media after transduction.
C. All of the phage DNA was radiolabeled.
D. Bacteria can be transduced by phage.
Chapter 17 Solutions
BIOLOGY: CONCEPTS&INVEST. (LL)
Ch. 17.1 - What are two domains that contain prokaryotes?Ch. 17.1 - Prob. 2MCCh. 17.1 - Prob. 3MCCh. 17.1 - Prob. 4MCCh. 17.2 - Prob. 1MCCh. 17.2 - Prob. 2MCCh. 17.2 - What does the Gram stain reveal about a cell?Ch. 17.2 - Prob. 4MCCh. 17.2 - Prob. 5MCCh. 17.2 - How are molecular data changing microbial...
Ch. 17.2 - Prob. 7MCCh. 17.3 - Prob. 1MCCh. 17.3 - Prob. 2MCCh. 17.3 - Prob. 3MCCh. 17.4 - Prob. 1MCCh. 17.4 - Prob. 2MCCh. 17.4 - What adaptations enable pathogenic bacteria to...Ch. 17.4 - What are some practical uses of bacteria and...Ch. 17.5 - Prob. 1MCCh. 17.5 - Prob. 2MCCh. 17 - A prokaryotic cell is one that a. lacks DNA. b....Ch. 17 - Which of these is a distinguishing characteristic...Ch. 17 - What feature distinguishes the cell walls of...Ch. 17 - Prob. 4MCQCh. 17 - Prob. 5MCQCh. 17 - Prob. 6MCQCh. 17 - Prob. 7MCQCh. 17 - Prob. 8MCQCh. 17 - Explain why the antibiotics penicillin and...Ch. 17 - Give five examples that illustrate how bacteria...Ch. 17 - If you were developing a new "broad-spectrum"...Ch. 17 - Ernst Mayr defined a biological species as a...Ch. 17 - In an article in Nature magazine, Sean Nee wrote...Ch. 17 - Ecosystems rely on nitrogen -fixing bacteria,...Ch. 17 - Prob. 7WIOCh. 17 - Prob. 8WIOCh. 17 - Prob. 9WIOCh. 17 - Prob. 10WIOCh. 17 - Mycobacterium tuberculosis causes most cases of...Ch. 17 - Prob. 1PITCh. 17 - Add autotrophs, heterotrophs, phototrophs, and...Ch. 17 - Prob. 3PITCh. 17 - Prob. 4PITCh. 17 - Prob. 5PIT
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- The experiments with nutritional mutants in Neurospora by Beadle and Tatum provided evidence that a. bread mold can be grown in a lab on minimal media. b. X-rays can damage DNA. c. cells need enzymes. d. genes specify enzymes.arrow_forwardImagine you go to the doctor because you are sick. You get antibiotics, but you hurry out of the hospital as fast as you can so you don’t pick up any antibiotic resistance genes as well. If genes were transferred directly from the environment, you could pick up a resistance gene by breathing the air. What type of gene transfer allows cells to pick up genes directly from the environment? a. Transformation b. Transduction c. Conjugation d. All of the abovearrow_forwarde. coli is commonly found in the human Microbiome. while most strains are harmless some can cause various illnesses ranging from urinary track infections to severe gastroenteritis. which of the following is a primary mechanism by which e. coli obtains its pathogenicity? A. Vertical gene transfer from parent to offspring B. Endosymbiosis with other bacteria C. Mutation in the bacterial chromosome D. Horizontal gene transfer from other Bacteria or the environmentarrow_forward
- Scientists have used genetic technology to develop strains of bacteria that are especially suited for cleaning up oil spills.How would you evaluate the use of this technology?arrow_forwardIn Hershey and Chase’s experiment investigating which biological molecule carries genetic information, they found that phage DNA with radiolabeled phosphorus was retained in bacterial cells after transduction. To conclude that DNA is the genetic material, what assumption did they have to make? (photo linked) A. Protein does not enter the bacterium during transduction. B. DNA does not stay in the media after transduction. C. All of the phage DNA was radiolabeled. D. Bacteria can be transduced by phage.arrow_forwardThe function of CRISPR gene cluster in Streptococcus pyogenes is to Select one or more: a. destroy phage DNA in the bacteria. O b. protect phage DNA in the bacteria. Oc. repair the damaged DNA in its genome. O d. delete the specific genes in its genome.arrow_forward
- When using gene therapy to treat an hereditary disease, the idea is to: A. Introduce the correct gene into the patient's DNA B. Inject the patient with a specific protein to cure the disease. C. Blood transfusions from healthy individuals. D. ntroduce mRNA molecules with the correct genetic information to the patient. E. Introduce a virus to the patient that will specifically destroy mutated cells.arrow_forwardBacteria can acquire DNA directly from the environment through: please explain the answer a.Conjugation b.Transduction c.Natural transformation d.All of the abovearrow_forwardIn 1973. Stanley Cohen and Herbert Boyer inserted a gene from an African clawed frog into a bacterium. The bacterium then began producing a proteir by the code found on the inserted frog gene. The procedure used by Cohen and Boyer created a... O A. Transgenic organism O B. Non-living organism O C. Stem cell O D. Unspecialized cellarrow_forward
- Horizontal gene transfer is a process in which genetic material from an organism is a. transferred from cell to cell. b. transferred to its offspring. c. transferred to another organism that is not the offspring of the first organism. d. released into the environment.arrow_forwardTranscriptomes, that is, all the transcripts in a cell, are analyzed using: a. a type of PCR b. fluorescently labeled nucleotides c. microarrays d. all the abovearrow_forwardBacterial transformation is a major concern in many medical settings. Why might health care providers be concerned? a. Pathogenic bacteria could introduce diseasecausing genes in non-pathogenic bacteria. b. Antibiotic resistance genes could be introduced to new bacteria to create “superbugs.” c. Bacteriophages could spread DNA encoding toxins to new bacteria. d. All of the above.arrow_forward
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