30. Assume that a new low-calorie sweetener is tested with the Ames test for mut

Question

30. Assume that a new low-calorie sweetener is tested with the Ames test for mutagenicity. The following developed. The structure is novel and is Sample results are obtained: distilled water distilled water+ rat liver enzymes sweetener sweetener + rat liver enzymes 60 65 What conclusion is most consistent with this data? a. The sweetener is not mutagenic C. The sweetener is b. Rat liver enzymes are highly mutagenic coverted into strong d.The sweetener and its conversion products are equally voles. Three strains of white vole have Assume that a researcher is studying coat color in been isolated: milky, Homozygous white voles are obtained for each strain. Consider the following c 31. , blanc and weiss. White is a recessive trait in each strain. milky x blanc-all white progeny milky x weiss = all brown (wild-type vole color) blanc x weiss-all brown (wild-type vole color) The conclusion most consistent with these results is: a. All three strains have mutations in the same gene b. All three strains have mutations in different genes c. Milky and weiss have mutations in the same gene, blanc has a mutation in a d. Milky and blanc have mutations in the same gene, weiss has a mutation in a e. Weiss and blanc have mutations in the same gene, milky has a mutation in a different gene different gene different gene

Explanation / Answer

30. Answer:

E) The sweetener and its conversion products are equally mutagenic.

31. Answer:

C) milky and blanc have mutations on the same gene, Weiss has a mutation in a different gene.

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