Asap please explain ptsChoose the false statement:O Using the experimental design from Griffith's experiments on rough and smoothbacteria, Avery was able to demonstrate that pre-treatment of bacteria with DNaseblocked transformation of smooth cells into rough cells.The term 'gene' was coined by Griffith to explain what was being transferred betweenthe rough and smooth bacteria in his studies.O Watson and Crick believed that they had answered to both the template theory andChargaff's ratios because of the symmetry created by having two polymers instead ofone DNA in their model.

The false statement is option b)- The term 'gene' was coined by Griffith to explain what was being…

Answered: Choose the false statement: O Using the…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Similar questions

Did Hershey and Chase overcome objections to Avery et al.’s claim that DNA, not protein, was the genetic material? How was the choice of a bacteriophage by Hershey and Chase a way to avoid problems with earlier bacterial transformation experiments?
The modular nature of eukaryotic activator proteinsgave scientists an idea for a way to find proteins thatinteract with any particular protein of interest. Theidea is to use the protein–protein interaction to bringtogether a DNA-binding region with an activation region, creating an artificial activator that consists oftwo polypeptides held together noncovalently by theinteraction.The method is called the yeast two-hybrid system,and it has three components. First, the yeast contains areporter gene construct in which UASG (an enhancerlike sequence that binds the activator Gal4 as describedin Problem 8) drives the expression of an E. coli lacZreporter (encoding the enzyme ß-galactosidase) from ayeast promoter. Second, the yeast also expresses a fusion protein in which the DNA-binding domain of Gal4is fused to the protein of interest; this fusion protein iscalled the bait. The third component is a cDNA librarymade in plasmids, where each cDNA is fused in frameto the activation domain of…
Price et al. [(1999). J. Bacteriol. 181:2358–2362] conducteda genetic study of the toxin transport protein (PA) of Bacillusanthracis, the bacterium that causes anthrax in humans. Withinthe 2294-nucleotide gene in 26 strains they identified five pointmutations—two missense and three synonyms—among differentisolates. Necropsy samples from an anthrax outbreak in 1979revealed a novel missense mutation and five unique nucleotidechanges among ten victims. The authors concluded that thesedata indicate little or no horizontal transfer between differentB. anthracis strains. Question: Which types of nucleotide changes (missense or synonyms)cause amino acid changes?
Price et al. [(1999). J. Bacteriol. 181:2358–2362] conducteda genetic study of the toxin transport protein (PA) of Bacillusanthracis, the bacterium that causes anthrax in humans. Withinthe 2294-nucleotide gene in 26 strains they identified five pointmutations—two missense and three synonyms—among differentisolates. Necropsy samples from an anthrax outbreak in 1979revealed a novel missense mutation and five unique nucleotidechanges among ten victims. The authors concluded that thesedata indicate little or no horizontal transfer between differentB. anthracis strains. Question: On what basis did the authors conclude that evidence ofhorizontal transfer is absent from their data?
Price et al. [(1999). J. Bacteriol. 181:2358–2362] conducteda genetic study of the toxin transport protein (PA) of Bacillusanthracis, the bacterium that causes anthrax in humans. Withinthe 2294-nucleotide gene in 26 strains they identified five pointmutations—two missense and three synonyms—among differentisolates. Necropsy samples from an anthrax outbreak in 1979revealed a novel missense mutation and five unique nucleotidechanges among ten victims. The authors concluded that thesedata indicate little or no horizontal transfer between differentB. anthracis strains. Question: What is meant by ”horizontal transfer”?
Would an experiment similar to that performed byHershey and Chase work if the basic design were appliedto the phenomenon of transformation? Explain why orwhy not.
"Complementary DNA (cDNA) libraries offer certain advantages over genomic libraries". Explain how ?
To clone a bacterial lipase gene into the cloning vector pET28a, you know the full sequence of the gene to be cloned. While you are designing the experiments, which bioinformatics tool(s) you want to use? Suggest a roadmap for this study
Briefly answer the question: Exome sequencing to identify a mutation that could cause a particular set of symptoms in a patient can reveal another genetic condition that has not yet been detected. Under what circumstances, if any, do you think patients should receive such "secondary findings"?
To determine the reproducibility of mutation fre-quency measurements, you do the following experiment.You inoculate each of 10 cultures with a single E. coli bac-terium, allow the cultures to grow until each contains 106cells, and then measure the number of cells in each culturethat carry a mutation in your gene of interest. You were sosurprised by the initial results that you repeated the experi-ment to confirm them. Both sets of results display the sameextreme variability, as shown in Table Q5–1. Assuming thatthe rate of mutation is constant, why do you suppose thereis so much variation in the frequencies of mutant cells indifferent cultures?
The accompanying photo shows a sequencing gel from the original study that first sequenced the cystic fibrosis gene (J. R. Riordan et al. 1989. Science 245:1066–1073). From the photo, determine the sequence of the normal copy of the gene and the sequence of the mutated copy of the gene. Identify the location of the mutation that causes cystic fibrosis. (Hint: The CF mutation is a 3-bp deletion.)
1a) How many EcoRI recognition sites are in the DNA molecule? 1, 2, 3 or 4? 1b) do the sizes of the DNA fragments from the BamHI digest add up to the same as those of the EcoRI digest? a) Yes, because the enzymes do the same job: to cut the DNA. b) Yes, because the same DNA molecule was used in the digests. c) No, because the fragment sizes produced by the two enzymes are different. d) No, because the enzymes have different cutting sites.

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