The table shows concordance for height between monozygotic and dizygotic twin pairs from birth to the age of eight years. A concordance of 1 indicates that the twins are identical in height. Concordance for height between Age monozygotic twin pairs dizygotic twin pairs of the same sex Birth 3 months 6 months 12 months 24 months 0.62 0.79 0.78 0.72 0.80 0.67 0.86 0.89 0.66 0.54 years 0.93 0.56 5 years 0.94 0.51 8 years 0.94 0.49 (a) If height were entirely genetically controlled, what concordance would you expect between monozygotic twin pairs? Explain your answer. (b) Does data for eight-year-old twins suggest that height is largely controlled by genetic factors? Explain you answer.

Curren'S Math For Meds: Dosages & Sol
11th Edition
ISBN:9781305143531
Author:CURREN
Publisher:CURREN
Chapter16: Adult And Pediatric Dosages Based On Body Surface Area
Section: Chapter Questions
Problem 4.4P
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The table shows concordance for height between monozygotic and dizygotic twin pairs from
birth to the age of eight years. A concordance of 1 indicates that the twins are identical in height.
Concordance for height between
Age
monozygotic twin pairs dizygotic twin pairs of the same
sex
Birth
3 months
6 months
12 months
24 months
3
0.62
0.79
0.78
0.72
0.80
0.67
0.66
0.54
0.86
0.89
0.93
0.56
years
5
years
0.94
0.51
8 years
0.94
0.49
(a) If height were entirely genetically controlled, what concordance would you expect between
monozygotic twin pairs? Explain your answer.
(b) Does data for eight-year-old twins suggest that height is largely controlled by genetic
factors? Explain you answer.
Transcribed Image Text:The table shows concordance for height between monozygotic and dizygotic twin pairs from birth to the age of eight years. A concordance of 1 indicates that the twins are identical in height. Concordance for height between Age monozygotic twin pairs dizygotic twin pairs of the same sex Birth 3 months 6 months 12 months 24 months 3 0.62 0.79 0.78 0.72 0.80 0.67 0.66 0.54 0.86 0.89 0.93 0.56 years 5 years 0.94 0.51 8 years 0.94 0.49 (a) If height were entirely genetically controlled, what concordance would you expect between monozygotic twin pairs? Explain your answer. (b) Does data for eight-year-old twins suggest that height is largely controlled by genetic factors? Explain you answer.
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