1. The following table gives the percentage of twin pairs studied in which both twins expressed the same phenotype for a trait (concordance). Percentages listed are for concordance for each trait in monozygotic (MZ) and dizygotic (DZ) twins. Assuming that both twins in each pair were raised together in the same environment, what do you conclude about the relative importance of genetic (H) versus environmental (E) factors for each trait? Traits MZ, % DZ, % H E Blood types 100 66 Eye color 99 28 Measles 95 87 Diabetes 65 18 Mental retardation 97 37
1. The following table gives the percentage of twin pairs studied in which both twins expressed the same phenotype for a trait (concordance). Percentages listed are for concordance for each trait in monozygotic (MZ) and dizygotic (DZ) twins. Assuming that both twins in each pair were raised together in the same environment, what do you conclude about the relative importance of genetic (H) versus environmental (E) factors for each trait? Traits MZ, % DZ, % H E Blood types 100 66 Eye color 99 28 Measles 95 87 Diabetes 65 18 Mental retardation 97 37
Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN:9781305251052
Author:Michael Cummings
Publisher:Michael Cummings
Chapter19: Population Genetics And Human Evolution
Section: Chapter Questions
Problem 9QP: Using the HardyWeinberg Law in Human Genetics Suppose you are monitoring the allelic and genotypic...
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The following table gives the percentage of twin pairs studied in which both twins expressed the same
Trait MZ % DZ %
Blood types 100 66
Eye color 99 28
Measles 95 87
Diabetes 65 18
Mental retardation 97 37
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