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1. You are screening three new food additives for potential mutagenicity using the Ames test. You...
You join a food chemistry lab where the researchers have found two new additives that are...
You join a food chemistry lab where the researchers have found
two new additives that are quite good at preventing food from
spoiling. Before putting these chemicals out on the market, they
decide that they should probably make sure there are no harmful
effects to humans. They do an Ames test and observe the following
results. Needless to say, they decide not to use the additives on
food.
Explain why the numbers of colonies on the
plates of the TAF...
You join a food chemistry lab where the researchers have found two new additives that are...
You join a food chemistry lab where the researchers have found
two new additives that are quite good at preventing food from
spoiling. Before putting these chemicals out on the market, they
decide that they should probably make sure there are no harmful
effects to humans. They do an Ames test and observe the following
results. Needless to say, they decide not to use the additives on
food.
What kind of mutation (be as specific as you can) is caused...
Below are results of the Ames Test that was conducted to determine whether a compound called...
Below
are results of the Ames Test that was conducted to determine
whether a compound called sodium azide could be useful for causing
detrimental mutations in bacteria, thus preventing bacterial growth
on surgical tools. To test the mutagenicity of sodium azide, the
Ames test was carried out. The bacterial species Salmonella
typhimurium requires Histidine to grow and was plated on minimum
growth plates lacking histidine. Bacteria plated on the control
plate had only buffer added, while bacteria on the treatment...
11. The DNA molecule below is incubated with all four dNTPs, Mg+ and a DNA polymerase...
11. The DNA molecule below is incubated with all four dNTPs, Mg+ and a DNA polymerase that lacks 5'+3' exonuclease activity but has 3-5'exonuclease activity and polymerase activity. What will be the structure of the final product and what is the first step in the reaction sequence? 3' OH-TGCGAATTAGCGACAT-P5' 5'P-ATCGGTACGGCGCTTA-P 3' 12. You are screening a chemical for potential mutagenicity using the Ames test. You used a his-S. typhimurium bacterium for this test and obtained the following results: Chemical +...
You just found a new compound “ABC” to be carcinogenic via the Ames test using His-Salmonella....
You just found a new compound “ABC” to be carcinogenic via the Ames test using His-Salmonella. Which of the experimental plates listed below will have the most colonies? His-Salmonella, rat liver enzymes His-Salmonella, rat liver enzymes, compound “ABC” His-Salmonella, compound “ABC” What test can you do to confirm that “ABC is carcinogenic?
can you answer those 3 questions Ipuints Save an You have developed a potential new antidepressant...
can you answer those 3 questions
Ipuints Save an You have developed a potential new antidepressant drug called Euphoria. The structure is novel and is tested using the Ames test for mutagenicity. The following results are obtained: Sample Number of his+ revertant colonies distilled water distilled water + rat liver enzymes antidepressant antidepressant + rat liver enzymes What conclusion is most consistent with these data? the drug and its conversion products are not mutagenic. rat liver enzymes are mutagenic. the...
need some assistance with this. thank you very much 1. Free radicals are __________ . (A)...
need some assistance with this. thank you very much 1. Free radicals are __________ . (A) molecules that have lost an electron (C) molecules with extra neutrons (B) escaped political prisoners (D) produced by vitamins 2. The chromosomal location of the APC gene was originally identified by finding a region of the genome that was _________ in patients with colorectal cancer. (A) deleted (B) rearranged (C) normal (D) unclear 3. The National Health Service of the United Kingdom (Britain) has...
need some assistance with this please. thank you very much 1. Free radicals are __________ ....
need some assistance with this please. thank you very much 1. Free radicals are __________ . (A) molecules that have lost an electron (C) molecules with extra neutrons (B) escaped political prisoners (D) produced by vitamins 2. The chromosomal location of the APC gene was originally identified by finding a region of the genome that was _________ in patients with colorectal cancer. (A) deleted (B) rearranged (C) normal (D) unclear 3. The National Health Service of the United Kingdom (Britain)...
All of the following questions are in relation to the following journal article which is available...
All of the following questions are in relation to the following journal article which is available on Moodle: Parr CL, Magnus MC, Karlstad O, Holvik K, Lund-Blix NA, Jaugen M, et al. Vitamin A and D intake in pregnancy, infant supplementation and asthma development: the Norwegian Mother and Child Cohort. Am J Clin Nutr 2018:107:789-798 QUESTIONS: 1. State one hypothesis the author's proposed in the manuscript. 2. There is previous research that shows that adequate Vitamin A intake is required...
You join a food chemistry lab where the researchers have found
two new additives that are quite good at preventing food from
spoiling. Before putting these chemicals out on the market, they
decide that they should probably make sure there are no harmful
effects to humans. They do an Ames test and observe the following
results. Needless to say, they decide not to use the additives on
food.
Explain why the numbers of colonies on the
plates of the TAF...
You join a food chemistry lab where the researchers have found
two new additives that are quite good at preventing food from
spoiling. Before putting these chemicals out on the market, they
decide that they should probably make sure there are no harmful
effects to humans. They do an Ames test and observe the following
results. Needless to say, they decide not to use the additives on
food.
What kind of mutation (be as specific as you can) is caused...
Below
are results of the Ames Test that was conducted to determine
whether a compound called sodium azide could be useful for causing
detrimental mutations in bacteria, thus preventing bacterial growth
on surgical tools. To test the mutagenicity of sodium azide, the
Ames test was carried out. The bacterial species Salmonella
typhimurium requires Histidine to grow and was plated on minimum
growth plates lacking histidine. Bacteria plated on the control
plate had only buffer added, while bacteria on the treatment...
11. The DNA molecule below is incubated with all four dNTPs, Mg+ and a DNA polymerase that lacks 5'+3' exonuclease activity but has 3-5'exonuclease activity and polymerase activity. What will be the structure of the final product and what is the first step in the reaction sequence? 3' OH-TGCGAATTAGCGACAT-P5' 5'P-ATCGGTACGGCGCTTA-P 3' 12. You are screening a chemical for potential mutagenicity using the Ames test. You used a his-S. typhimurium bacterium for this test and obtained the following results: Chemical +...
can you answer those 3 questions
Ipuints Save an You have developed a potential new antidepressant drug called Euphoria. The structure is novel and is tested using the Ames test for mutagenicity. The following results are obtained: Sample Number of his+ revertant colonies distilled water distilled water + rat liver enzymes antidepressant antidepressant + rat liver enzymes What conclusion is most consistent with these data? the drug and its conversion products are not mutagenic. rat liver enzymes are mutagenic. the...
All of the following questions are in relation to the following journal article which is available on Moodle: Parr CL, Magnus MC, Karlstad O, Holvik K, Lund-Blix NA, Jaugen M, et al. Vitamin A and D intake in pregnancy, infant supplementation and asthma development: the Norwegian Mother and Child Cohort. Am J Clin Nutr 2018:107:789-798 QUESTIONS: 1. State one hypothesis the author's proposed in the manuscript. 2. There is previous research that shows that adequate Vitamin A intake is required...
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