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
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 Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
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The following table gives the percentage of twin pairs studied in which both
twins expressed the same
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
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