Strayer SCI 115 Genetic Lab Quiz

QUESTION

Course Introduction To BiologyTest Genetics Lab AssessmentQuestion 13 out of 3 pointsCorrectIn the first part of this lab, we study data from a (hypothetical) species called Glyptodan neomexicanus. Each individual has either a red shell or a yellow shell. A count of individuals in a particular area indicates that there are 122 red individuals and 38 yellow individuals. If we assume that shell color is inherited in a Mendelian fashion, which shell color appears to be dominant?Question 23 out of 3 pointsCorrect All we can observe directly is the phenotype of an individual, without biochemical or genomic analysis. Therefore, we cannot ascertain the genotype of individuals by inspection of their shells. However, if shell color is inherited in a Mendelian fashion and if we study family units, we can infer the genotype from the phenotypes of the parents and the offspring. In this analysis we are assuming that red is dominant and yellow is recessive. The A allele goes with the red trait, the a allele goes with the yellow trait.If both parents are red, and there are three red offspring and one yellow offspring, we know that:AnswerQuestion 30 out of 3 pointsIncorrect All we can observe directly is the phenotype of an individual, without biochemical or genomic analysis. Therefore, we cannot ascertain the genotype of individuals by inspection of their shells. However, if shell color is inherited in a Mendelian fashion and if we study family units, we can infer the genotype from the phenotypes of the parents and the offspring. In this analysis we are assuming that red is dominant and yellow is recessive. The A allele goes with the red trait, the a allele goes with the yellow trait.If both parents are yellow, and all offspring are yellow, thenQuestion 40 out of 3 pointsIncorrectRefer to the picture of the thin-layer chromatography results to answer this question. Joe recorded in his lab notebook that TLC showed three spots with Rf values of 0.75, 0.58 and 0.44. However, he forgot to record the color of these spots. Based on the TLC data shown above, which of these is the Rf of the red pigment?Question 50 out of 3 pointsIncorrectRefer to the picture of the thin-layer chromatography results to answer this question Can you distinguish between the chromatograms of an Aa individual and an AA individual?Question 63 out of 3 pointsCorrectRefer to the picture of the thin-layer chromatography results to answer this question. Is the grey pigment controlled by the same gene as the red pigment?AnswerSelected Answer: NoCorrect Answer: NoQuestion 73 out of 3 pointsCorrectThe protein profiles for the Aa and AA individuals areQuestion 83 out of 3 pointsCorrectDoes the presence or absence of a particular protein correlate with the presence or absence of a particular allele?Question 93 out of 3 pointsCorrectSince genes are expressed by coding for the production of individual proteins, do any proteins found appear to be under the control of any particular allele(s)?Question 103 out of 3 pointsCorrectWhat can you conclude if the protein with an apparent mass of 45 kDa is not detected in individuals who lack the dominant allele?Course Introduction To BiologyTest Genetics Lab AssessmentQuestion 13 out of 3 pointsCorrect In the first part of this lab, we study data from a (hypothetical) species called Glyptodan neomexicanus. Each individual has either a red shell or a yellow shell. A count of individuals in a particular area indicates that there are 122 red individuals and 38 yellow individuals. If we assume that shell color is inherited in a Mendelian fashion, which shell color appears to be dominant?Question 23 out of 3 pointsCorrect All we can observe directly is the phenotype of an individual, without biochemical or genomic analysis. Therefore, we cannot ascertain the genotype of individuals by inspection of their shells. However, if shell color is inherited in a Mendelian fashion and if we study family units, we can infer the genotype from the phenotypes of the parents and the offspring. In this analysis we are assuming that red is dominant and yellow is recessive. The A allele goes with the red trait, the a allele goes with the yellow trait.If both parents are yellow, and all offspring are yellow, thenQuestion 30 out of 3 pointsIncorrect All we can observe directly is the phenotype of an individual, without biochemical or genomic analysis. Therefore, we cannot ascertain the genotype of individuals by inspection of their shells. However, if shell color is inherited in a Mendelian fashion and if we study family units, we can infer the genotype from the phenotypes of the parents and the offspring. In this analysis we are assuming that red is dominant and yellow is recessive. The A allele goes with the red trait, the a allele goes with the yellow trait.If one parent is red and the other is yellow and half the offspring are red, while half the offspring are yellow, thenQuestion 43 out of 3 pointsCorrectRefer to the picture of the thin-layer chromatography results to answer this question Can you distinguish between the chromatograms of an Aa individual and an AA individual?Question 50 out of 3 pointsIncorrectRefer to the picture of the thin-layer chromatography results to answer this question Which pigment is always present when a dominant allele ( A) is present?Question 60 out of 3 pointsIncorrectRefer to the picture of the thin-layer chromatography results to answer this question. Based on the thin-layer chromatography of shell extract, how many pigments are present in the samples derived from individuals that are heterozygous for shell color?Question 73 out of 3 pointsCorrectWhat can you conclude if the protein with an apparent mass of 45 kDa is not detected in individuals who lack the dominant allele?Question 83 out of 3 pointsCorrectThe protein profiles for the Aa and AA individuals areQuestion 93 out of 3 pointsCorrectSince genes are expressed by coding for the production of individual proteins, do any proteins found appear to be under the control of any particular allele(s)?Question 103 out of 3 pointsCorrectHow many proteins appear to be related to the differences in shell color?AnswerSelected Answer: 1Correct Answer: 1Course Introduction To BiologyTest Genetics Lab AssessmentQuestion 13 out of 3 pointsCorrect In the first part of this lab, we study data from a (hypothetical) species called Glyptodan neomexicanus. Each individual has either a red shell or a yellow shell. A count of individuals in a particular area indicates that there are 122 red individuals and 38 yellow individuals. If we assume that shell color is inherited in a Mendelian fashion, which shell color appears to be dominant?Question 20 out of 3 pointsIncorrect All we can observe directly is the phenotype of an individual, without biochemical or genomic analysis. Therefore, we cannot ascertain the genotype of individuals by inspection of their shells. However, if shell color is inherited in a Mendelian fashion and if we study family units, we can infer the genotype from the phenotypes of the parents and the offspring. In this analysis we are assuming that red is dominant and yellow is recessive. The A allele goes with the red trait, the a allele goes with the yellow trait.If one parent is red and the other is yellow, and all the offspring are red, thenQuestion 33 out of 3 pointsCorrect All we can observe directly is the phenotype of an individual, without biochemical or genomic analysis. Therefore, we cannot ascertain the genotype of individuals by inspection of their shells. However, if shell color is inherited in a Mendelian fashion and if we study family units, we can infer the genotype from the phenotypes of the parents and the offspring. In this analysis we are assuming that red is dominant and yellow is recessive. The A allele goes with the red trait, the a allele goes with the yellow trait.If both parents are red, and there are three red offspring and one yellow offspring, we know that:Question 43 out of 3 pointsCorrectRefer to the picture of the thin-layer chromatography results to answer this question What pigments are present in the samples derived from individuals that are homozygous dominant (AA) for shell color?Question 53 out of 3 pointsCorrectRefer to the picture of the thin-layer chromatography results to answer this question. Based on the thin-layer chromatography of shell extract, how many pigments are present in the samples derived from individuals that are heterozygous for shell color?Question 63 out of 3 pointsCorrectRefer to the picture of the thin-layer chromatography results to answer this question. Joe recorded in his lab notebook that TLC showed three spots with Rf values of 0.75, 0.58 and 0.44. However, he forgot to record the color of these spots. Based on the TLC data shown above, which of these is the Rf of the red pigment?Question 73 out of 3 pointsCorrectDoes the presence or absence of a particular protein correlate with the presence or absence of a particular allele?Question 83 out of 3 pointsCorrectHow many proteins appear to be related to the differences in shell color?Question 93 out of 3 pointsCorrectSince genes are expressed by coding for the production of individual proteins, do any proteins found appear to be under the control of any particular allele(s)?Question 103 out of 3 pointsCorrectThe protein profiles for the Aa and AA individuals are

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