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22
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- QUESTION 5You are asked to recommend an antibiotic to treat potential pathogenicityt in an animal. Describe a method which will allow you to make this recommendation.QUESTION 27 Which of the following methods can be used to compare the amounts of one specific mRNA that is expressed by two different cell lines? A. Immunohistochemistry B. Western blotting C. Polymerase chain reaction (PCR) D. ImmunocytochemistryQuestion 29 PCR is a technique that: produces information regarding the sequence of nitrogenous bases virtually eliminates operator error from DNA analysis All of these can produce many exact copies of segments of DNA provides a statistical analysis of the nitrogenous-base pairings
- Question 24 pts When we are vaccinated against SARS-CoV-2, what happens? (select all correct answers) Group of answer choices a) Our adaptive immune system becomes primed to recognize the SARS-CoV-2 virus. b) Our DNA becomes modified. c) We will permanently have viral proteins in our cells d) Our cells will make a partial or complete viral protein, which our immune system will recognize as foreign. e) Memory cells will be ready for a new infection.QUESTION 22 Which type of mutation results in no change in amino acid sequence for the protein? Silent Missense Nonsense FrameshiftThe genetic code is identical in cyanobacteria, lions, and humans Question 25 options: True False
- Question 1. The nitrogenous base content of a sample of DNA was found to be 34% adenine. Determine the amounts of the other three bases in this sample.Question #3 Silent Mutation Part 1What is the result of a silent mutation on a protein?Part 2Given what you know about the genetic code, why did you give the response you did in part one? Please explain in no more than two sentences.QUESTION 3 Strands of DNA join together with Hydrogen bonds. These bonds form between the Nitrogenous bases. These bonds are specific and only occur betwwe A. Aand T form 3 bonds, and G and C form 2 bonds B. Aand G form 3 bonds, and T and C form 2 bonds C. Aand T form 2 bonds, and G and C form 3 bonds D. U and T form 3 bonds, and A and C form 2 bonds
- QUESTION 14 Which of the following best explains why there are 64 codons, but only20 amino acids for which they code? The genetic code is not ambiguous The genetic code is redundant, or degenerate There are different reading frames. RNA polymerase makes mistakesQuestion 21>In 1668, Francesco Redi performed a series of experiments on spontaneous generation. He began by putting similar pieces of meat into eight identical jars. Four jars were left open to the air, and four were sealed. He then did the same experiment with one variation: Instead of sealing four of the jars completely, he covered them with gauze (the gauze excluded the flies while allowing the meat to be exposed to air). In both experiments, he monitored the jars and recorded whether or not maggots (young flies) appeared in the meat.What hypothesis was being tested in the initial experiment with open versus sealed jars?A.The type of meat used affects the likelihood of spontaneous generation.B.Spontaneous generation can occur only if meat is exposed to air.C.Spontaneous generation is more likely during the long days of summer.D.Maggots do not arise spontaneously, but from eggs laid by adult flies.Question 36 Which of these is not considered a method of DNA extraction? organic filtration differential purification all of the above are extraction methods