It is clearly established that obesity has greatly increased in children over the last several decades in the United States. While several genes have been identified that increase the potential for obesity, environmental influences are also involved. Which of the following is most likely?
A) There is little or no gene- environment interaction.
B) There is a demonstrable threshold of environmental effects.
C) There is a wide range of phenotypes with each genotype.
D) There is a small overlap of phenotypic ranges of different genotypes.
E) Phenotypic variation is discontinuous.

Question

Quizplus · Accepted Answer

Given the complexity of obesity, which involves both genetic predispositions and environmental factors, it is likely that there is a wide range of phenotypes for each genotype. This means that individuals with the same genetic predisposition for obesity can exhibit different levels of obesity based on environmental influences such as diet and physical activity.

It Is Clearly Established That Obesity Has Greatly Increased in Children