The human genome has not changed markedly in the last century, yet obesity has noticeably increased. This indicates that
A) environmental factors play an important role in obesity.
B) obesity is primarily a product of a person's genes.
C) environmental factors have little impact on obesity.
D) there is reduced reliance on energy-saving devices.

Question

Quizplus · Accepted Answer

The fact that the human genome has not changed much in the past century, yet obesity rates have risen, indicates that environmental factors must be playing a significant role in the increase. This suggests that changes in lifestyle, such as changes in diet or levels of physical activity, are likely to be the primary drivers of the increase in obesity rates.

The Human Genome Has Not Changed Markedly in the Last