On the basis of the concordances shown in Table is variation in rheumatoid arthritis influenced by genetic factors, environmental factors, or both? Explain your reasoning. TABLE 6.2 Concordance of monozygotic and dizygotic twinsfor several traitsConcordance (%)TraitMonozygoticDizygotic1. Heart attack (males)39262. Heart attack (females)44143. Bronchial asthma47244. Cancer (all sites)12155. Epilepsy59196. Death from acute infection7.98.87. Rheumatoid arthritis3268. Multiple sclerosis28

Concordance is the percentage possessed by twin pairs that are concordant for a particular trait.…

Answered: TABLE 6.2 Concordance of monozygotic…

Human Heredity: Principles and Issues (MindTap Course List)

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ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter18: Genetics Of Behavior

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Problem 14QP: A pedigree analysis was performed on the family of a man with schizophrenia. Based on the known...

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On the basis of the concordances shown in Table is variation in rheumatoid arthritis influenced by genetic factors, environmental factors, or both? Explain your reasoning.

TABLE 6.2 Concordance of monozygotic and dizygotic twins
for several traits
Concordance (%)
Trait
Monozygotic
Dizygotic
1. Heart attack (males)
39
26
2. Heart attack (females)
44
14
3. Bronchial asthma
47
24
4. Cancer (all sites)
12
15
5. Epilepsy
59
19
6. Death from acute infection
7.9
8.8
7. Rheumatoid arthritis
32
6
8. Multiple sclerosis
28

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