70.9% of the Earth's surface is covered by water. Of that, 97% is in the Earth's oceans, 2.4% are in polar ice caps and glaciers, and the remaining 0.6% is in the land surfaceâ¦ water areas of the Earth.
Hypertrophic obesity is excessive weight gain in adulthood. Hypertrophic is when the fat cells get bigger. This is as opposed to Hyperplastic obesity, which is the gaining of fat cells. The latter only occurs during childhood, or if the person gains a lot of weight fast.
The distinction between monogenic obesity and obesity due to a major gene effect may appear semantic. However, because BMI is a quantitative trait with obesity representing the right tail of the distribution, attempts to address this distinction are warranted.he brain derived neurotrophic factor (BDNF) is involved in weight regulation downstream of the MC4R. Mutations in single genes of the leptinergicâmelanocortinergic pathway have been shown to have a monogenic effect on the development of obesity.