Concept explainers
What is the most accurate way to ex plain the relationship between antibiotic s and antibiotic-resistant bacteria?
a. Exposing bacteria to antibiotics causes DNA mutations that confer antibiotic resistance.
b. A population of bacteria evolves anti biotic resistance alleles in order to survive exposure to antibiotics.
c. Bacteria with alleles that confer antibiotic resistance are most likely to survive when exposed to antibiotics.
d. Antibiotics bind to alleles that confer antibiotic susceptibility, causing changes that make the gene pool more resistant.
Want to see the full answer?
Check out a sample textbook solutionChapter 12 Solutions
Biology: Concepts and Investigations
Additional Science Textbook Solutions
Human Biology: Concepts and Current Issues (8th Edition)
MARINE BIOLOGY
Concepts of Genetics (12th Edition)
Human Physiology
Becker's World of the Cell (9th Edition)
- What is the role of a virus in gene therapy?a. It causes the disease that gene therapy is aiming to cure.b. It carries the healthy DNA into the patient’s cells.c. It carries the faulty DNA out of the patient’s cells.d. It reveals which cells carry the DNA causing the disease.arrow_forwardWhich 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.arrow_forwardA student wants to observe how the environment of bacteria affects gene expression. How should the experiment be designed? A. exposing the same species of bacteria to the same carbohydrates in each sample B. exposing the same species of bacteria to different carbohydrates in each sample C. exposing different species of bacteria to the same carbohydrates in each sample D. exposing different species of bacteria to different carbohydrates in each samplearrow_forward
- Imagine 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_forwardWhich is the BEST technique to use to answer this question? You wish to determine whether a point mutation is present in the sunscreen gene. a. Westem blot. b. Northern blot . c. Sanger DNA sequencing d. In situ hybridization. Part B. Which is the BEST technique to use to answer this question? You wish to determine where Sunshine protein is translated in a ladybug embryo. a. Immunofluorescencez b. Western blot . c. RT-PCR. d. Northern blot. e. in situ hybridization.arrow_forwardA particular strain of λ (lambda) can lysogenize its E. coli host at 30°C, but not at 42°C. Could a temperature-sensitive mutation in the int (integrase) gene explain this phenotype? A. There is insufficient information to answer the question. B. No C. Yesarrow_forward
- Which type of cells were used to extract the DNA that was sequenced? a. red blood cells c. white blood cells b. intestinal epithelium d. cheek swab What type of mutation caused Nicholas’s disease? a. frameshift c. nonsense b. missense d. insertionarrow_forwardGenetic engineering is the direct modification of an organisms’ DNA using biotechnology. What are the different techniques in genetic engineering? a. Inoculate, Gel electrophoresis, Budding and Cloning b. Grafting, Gene splicing, Budding and Inbreeding c. Cloning, Gene splicing, Gel electrophoresis and Hybridization d. Gene splicing, Grafting, Hybridization and Cloningarrow_forwardYou have extracted a long piece of DNA from a human cell and you want to extract the gene of interest for you to clone it. Assuming that you know the sequence of the DNA what methods can youuse to amplify the gene of interest? A. antibody purification B. polymerase chain reaction C. none of the above D. ligationarrow_forward
- How is a fusion protein formed? a. Use CRISPR/Cas9 to remove a portion of the gene of interest, thereby creating a shorter protein b. Use site-directed mutagenesis to replace one sequence with another c. Use the yeast two hybrid technique to form a new hybrid protein d. Use recombinant DNA to ligate a cDNA in frame with another protein coding sequencearrow_forwardHow does an embryonic stem cell differ from an adult stem cell? A. Embryonic stem cells are able to differentiate into many different types of cell. B. Adult stem cells are able to differentiate into other fully developed cells. C. Embryonic stem cells do not require nuclear transfer for cloning. D. Embryonic stem cells are more likely to uptake the plasmids required for iPSCs.arrow_forwardRegarding the PCR technique, what is false?a. It can produce multiple copies of DNA.b. It is the same as DNA fingerprinting.c. It is not a time-consuming process.d. It cannot successfully copy whole genesarrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education