Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 14, Problem 5RQ
The experiments by Hershey and Chase helped confirm that DNA was the hereditary material on the basis of the finding that:
- radioactive phage were found in the pellet
- radioactive cells were found in the supernatant
- radioactive sulfur was found inside the cell
- radioactive phosphorus was found in the cell
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Chapter 14 Solutions
Biology 2e
Ch. 14 - Figure 14.10 In eukaryotic cells, DNA and RNA...Ch. 14 - Figure 14.14 You isolate a cell strain in which...Ch. 14 - Figure 14.21 A fr am eshift mutation that results...Ch. 14 - If DNA of a particular species was analyzed and it...Ch. 14 - The experiments by Hershey and Chase helped...Ch. 14 - Bacterial transformation is a major concern in...Ch. 14 - DNA double helix does not have which of the...Ch. 14 - In eukaryotes, what is the DNA wrapped around?...Ch. 14 - Meselson and Stahl's experiments proved that DNA...Ch. 14 - If the sequence of the 5'-3' strand is AATGCTAC,...
Ch. 14 - How did Meselson and Stahl support Watson and...Ch. 14 - Which of the following components is not involved...Ch. 14 - Which of the following does the enzyme primase...Ch. 14 - In which direction does DNA replication take...Ch. 14 - A scientist randomly mutates the DNA of a...Ch. 14 - The ends of the linear chromosomes are maintained...Ch. 14 - Which of the following is not a true statement...Ch. 14 - During proofreading, which of the following...Ch. 14 - The initial mechanism for repairing nucleotide...Ch. 14 - A scientist creates fruit fly larvae with a...Ch. 14 - Explain Griffith's transformation experiments What...Ch. 14 - Why were radioactive sulfur and phosphorous used...Ch. 14 - When Chargaffwas performing his experiments, the...Ch. 14 - Provide a brief summary of the Sanger sequencing...Ch. 14 - Describe the structure and complementary base...Ch. 14 - Prokaryotes have a single circular chromosome...Ch. 14 - How did the scientific community learn that DNA...Ch. 14 - Imagine the Meselson and Stahl experiments had...Ch. 14 - DNA replication is bidirectional and...Ch. 14 - What are Okazaki fragments and how they are...Ch. 14 - If the rate of replication in a particular...Ch. 14 - Explain the events taking place at the replication...Ch. 14 - What is the role of a primer in DNA replication?...Ch. 14 - Quinolone antibiotics treat bacterial infections...Ch. 14 - How do the linear chromosomes in eukaryotes ensure...Ch. 14 - What is the consequence of mutation of a mismatch...Ch. 14 - An adult with a history of tanning has his genome...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Cloning Genes Is a Multistep Process Which enzyme is responsible for covalently linking DNA strands together? a. DNA polymerase b. DNA ligase c. EcoRl d. restriction enzymes e. RNA polymerasearrow_forwardCloning Genes Is a Multistep Process In cloning human DNA, why is it necessary to insert the DNA into a vector such as a bacterial plasmid?arrow_forwardFigure 17.7 You are working in a molecular biology lab and, unbeknownst to you, your lab partner left the foreign genomic DNA that you are planning to clone on the lab bench overnight instead of storing it in the freezer. As a result, it was degraded by nucleases, but still used in the experiment. The plasmid, on the other hand, is fine. What results would you expect from your molecular cloning experiment? There will be no colonies on the bacterial plate. There will be blue colonies only. There will be blue and white colonies. The will be white colonies only.arrow_forward
- fellow lab worker brings you DNA containing what might be a similar gene in Leopard Geckos (XG). She asks you to see if you can amplify it using the same primers you used in frogs and the Bearded Dragon. You run the PCR and then analyze the product by running the DNA on an agarose gel. As a control, you run out the PCR product you amplified in Bearded Dragons and a DNA “ladder” of DNA pieces of known sizes. The gel results are shown below. Marker = DNA ladder; Lane A = Bearded Dragon PCR product; Lane B = Leopard Gecko PCR results. In the box below, determine the sizes of the PCR products shown in Lanes A & B. Size of Bearded Dragon PCR product: ______________________________ Sizes of Leopard Gecko PCR products: ______________________ yes or No - based on the results shown in the gel above – would you say the frog PCR primers for gene X amplified the same gene in the Bearded Dragon?arrow_forwardHershey and Chase used radioactive components to tag protein and DNA before infecting bacteriophage. What was the most important concept demonstrated by Hershey-Chase experiments? Explain the experiment in detail.arrow_forwardResearchers are designing several experiments to test the ability of Salmonella bacteria to develop antibiotic resistance. A culture of Salmonella bacteria is exposed to the same concentrations (200 mg/L) of an antibiotic for four days. The table shows the number of isolated resistant bacteria over a four-day period. Which of the following statements best explains these results? A - The bacteria were not affected by the antibiotic. B - After being exposed to the antibiotic, the bacteria altered their DNA. C - A new species of bacteria emerged after the antibiotics were introduced. D - Random mutations led some bacteria to be resistant and, over time, they increased in the population.arrow_forward
- A scientist made mistakes during DNA extraction. On his first attempt, he blended the sample too much for a long time. On his 2nd attempt, he used potassium acetate instead of sodium chloride. On his third attempt, he forgot to put C4H8O2.1. Which attempt would be the highest based on increasing DNA purity? what about by increasing DNA yield?2. Explain the effect of his mistakes in each of his attempts on the yield and purity of the DNA sample extracted.3. Which attempt would be the most successful? Why?arrow_forwardChoose the statements below which are correct. There may be more than one correct statement. A) primers are required in both PCR and DNA replication B) PCR is done in a tube while DNA replication occurs inside our cells C) PCR and DNA replication both use a type of DNA ploymerase D) PCR will always copy the entire chromosomearrow_forwardWhich of the following best explains the natural function to the tumor-inducing (Ti) plasmid? It expresses a toxin that causes tumors in insects, making them avoid soil containing Agrobacterium They are used cause tumors in mice, in order to study cancer genetics It is used by Agrobacterium to induce tumors in its plant host, so the plant will make food for the bacteria It is used by geneticists to make transgenic plantsarrow_forward
- Fill in the following with the correct words about cloning (the first blank will be the first word and the second blank will be the second word. There are two types of cloning, the first is when scientists change the cellular function this is called cloning and can help with creating insulin and vaccines to name a few. The other type is when DNA is extracted from a somatic cell and is used to replace DNA in an egg, this is called cloning. O gene, organism O organism, gene O specific, general O micro, macroarrow_forwardHoura put together a PCR reaction with the following ingredients: 5 uL of 10X buffer with Mg+2 2.5 uL Forward primer 2.5 uL Reverse primer 0.5 uL Taq polymerase 5 uL DNA from an unknown microbe 34.5 uL water But when she visualized her DNA, she saw bands for the ladder but not for her PCR reaction. What might have gone wrong in her PCR? Explain why this problem would result in Houra having no PCR bands.arrow_forwardUse the following information to answer the next question In the process of genetic engineering, recombinant DNA is produced by combining genetic material from two different sources. For this technique, genetic engineers are especially interested in a specific group of enzymes called restriction endonuclease. These enzymes are preferred because they join the DNA fragments at 3' ends join the DNA fragments at 5' ends cut DNA at specific sites within the DNA cut DNA from their 5' or 3' endsarrow_forward
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