Metabolism and Weight Gain Whyis it that one person may tend to gain weight,even if he

Chapter 12, Problem 71

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Metabolism and Weight Gain Whyis it that one person may tend to gain weight,even if he eats no more and exercises no less than aslim friend? Recent studies suggest that the factors thatcontrol metabolism may depend on your geneticmakeup. One study involved 11 pairs of identicaltwins fed about 1000 calories per day more thanneeded to maintain initial weight. Activities were keptconstant, and exercise was minimal. At the end of 100days, the changes in body weight (in kilograms) wererecorded for the 22 twins.16 Is there a significant positivecorrelation between the changes in body weightfor the twins? Can you conclude that this similarity iscaused by genetic similarities? Explain.Pair Twin A Twin B1 4.2 7.32 5.5 6.53 7.1 5.74 7.0 7.25 7.8 7.96 8.2 6.47 8.2 6.58 9.1 8.29 11.5 6.010 11.2 13.711 13.0 11.0

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