Strayer SCI 115 Genetic Lab Quiz

26 Jun Strayer SCI 115 Genetic Lab Quiz

Question
Course Introduction To Biology
Test Genetics Lab Assessment

Question 1
3 out of 3 points
Correct
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 2
3 out of 3 points
Correct
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:
Answer

Question 3
0 out of 3 points
Incorrect
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, then

Question 4
0 out of 3 points
Incorrect

Refer 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 5
0 out of 3 points
Incorrect

Refer 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 6
3 out of 3 points
Correct

Refer 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?
Answer
Selected Answer:
No
Correct Answer:
No
Question 7
3 out of 3 points
Correct

The protein profiles for the Aa and AA individuals are

Question 8
3 out of 3 points
Correct

Does the presence or absence of a particular protein correlate with the presence or absence of a particular allele?

Question 9
3 out of 3 points
Correct

Since 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 10
3 out of 3 points
Correct

What 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 Biology
Test Genetics Lab Assessment

Question 1
3 out of 3 points
Correct
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 2
3 out of 3 points
Correct
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, then

Question 3
0 out of 3 points
Incorrect
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, then

Question 4
3 out of 3 points
Correct

Refer 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 5
0 out of 3 points
Incorrect

Refer 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 6
0 out of 3 points
Incorrect

Refer 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 7
3 out of 3 points
Correct

What can you conclude if the protein with an apparent mass of 45 kDa is not detected in individuals who lack the dominant allele?

Question 8
3 out of 3 points
Correct

The protein profiles for the Aa and AA individuals are

Question 9
3 out of 3 points
Correct

Since 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 10
3 out of 3 points
Correct

How many proteins appear to be related to the differences in shell color?

Answer
Selected Answer:
1

Correct Answer:
1

Course Introduction To Biology
Test Genetics Lab Assessment

Question 1
3 out of 3 points
Correct
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 2
0 out of 3 points
Incorrect
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, then

Question 3
3 out of 3 points
Correct
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 4
3 out of 3 points
Correct

Refer 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 5
3 out of 3 points
Correct

Refer 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 6
3 out of 3 points
Correct

Refer 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 7
3 out of 3 points
Correct

Does the presence or absence of a particular protein correlate with the presence or absence of a particular allele?

Question 8
3 out of 3 points
Correct

How many proteins appear to be related to the differences in shell color?

Question 9
3 out of 3 points
Correct

Since 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 10
3 out of 3 points
Correct

The protein profiles for the Aa and AA individuals are