The common morning glory (Ipomoea purpurea) is highly polymorphic for flower color. Part of this phenotypic variation is due to allelic variation at the P locus. This locus determines whether flowers will be in purple or white color. Further genetic studies showed that the purple color is dominant. Based on a survey, you found that out of a total of 1000 individuals in the population, 922 are purple and 78 are white. Assuming that this population is in Hardy-Weinberg equilibrium, what is the allele frequency for the purple allele? A. 0.078 B. 0.279 C. 0.721 D. 0.922 E. 0.960
Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
| A. |
0.0025 |
|
| B. |
0.01 |
|
| C. |
0.95 |
|
| D. |
0.99 |
|
| E. |
None of the above |
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The common morning glory (Ipomoea purpurea) is highly polymorphic for flower color. Part of this
phenotypic variation is due to allelic variation at the P locus. This locus determines whether flowers will be in purple or white color. Further genetic studies showed that the purple color is dominant. Based on a survey, you found that out of a total of 1000 individuals in the population, 922 are purple and 78 are white. Assuming that this population is in Hardy-Weinberg equilibrium, what is the allele frequency for the purple allele?A. 0.078
B. 0.279
C. 0.721
D. 0.922
E. 0.960
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