In a population of the annual, self-compatible, Ipomoea purpurea, allele frequencies at a neutral genetic marker with two alleles are p=0.7; q=0.3 in generation 1. Assume this population in generation 1 was initially in Hardy Weinburg equilibrium. In this year, pollinators are absent and all plants self-fertilize, thus producing only self-fertilized seeds. Is the population in this second generation (i.e the offspring) still in Hardy Weinburg equilibrium? Show your work or explain your answer.

In a population of the annual, self-compatible, Ipomoea purpurea, allele frequencies at a neutral genetic marker with two alleles are p=0.7; q=0.3 in generation 1. Assume this population in generation 1 was initially in Hardy Weinburg equilibrium. In this year, pollinators are absent and all plants self-fertilize, thus producing only self-fertilized seeds. Is the population in this second generation (i.e the offspring) still in Hardy Weinburg equilibrium? Show your work or explain your answer.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter12: Mendel, Genes, And Inheritance

Section: Chapter Questions

Problem 2ITD

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A wide-ranging survey of Nicotonia growing in its natural environment recorded a variation in corolla length ranging from 12mm to 47mm with a variance of 36.5. Subsequently, collected seeds were grown in a greenhouse and it was found that the range was now very much lower with most plants having similar corolla lengths and the variance was now only 8.4. After the plants had grown to maturity and formed seed, seeds were collected from plants with either the shortest and or the longest corollas in the population and planted separately in the greenhouse. When flowers were formed it was found that the variance of the plants with the shortest flowers was now 4.2 while that of the flowers from the longest seeds had become 13.7 So，Calculate the new values for heritability in the different groups of plants and explain why this difference may arise.
A wide-ranging survey of Nicotonia growing in its natural environment recorded a variation in corolla length ranging from 12mm to 47mm with a variance of 36.5. Subsequently, collected seeds were grown in a greenhouse and it was found that the range was now very much lower with most plants having similar corolla lengths and the variance was now only 8.4. After the plants had grown to maturity and formed seed, seeds were collected from plants with either the shortest and or the longest corollas in the population and planted separately in the greenhouse. When flowers were formed it was found that the variance of the plants with the shortest flowers was now 4.2 while that of the flowers from the longest seeds had become 13.7 Thus, calculate the new values for heritability in the different groups of plants and explain why this difference may arise.
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