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Eye color is a polygenic trait. Height and skin color are also polygenic traits. If there is a vast variation in a trait, it's likely that it is polygenic.


Polygenic traits are those traits that are controlled by more than one gene. Such traits may even be controlled by genes located on entirely different chromosomes. Human height, eye and hair color are examples of polygenic traits. Skin color is another polygenic trait for humans and a variety of oth


Examples of polygenic inheritance in humans include height, eye color and skin color. Physical traits that have polygenic inheritance are influenced by more than one gene and typically display a continuous distribution, such as a range of heights. Polygenic traits do not have the classic phenotypic


In most cases, obesity occurs when a person consumes more calories than he burns. Inactivity, pregnancy, sleep loss, medication and heredity are a few factors that may contribute to calorie imbalances. Medical conditions, such as hypothyroidism, Cushing’s syndrome and polycystic ovarian syndrome, ca


Obesity is caused by a combination of genetics, socioeconomic environment, metabolism and lifestyle choices. However, taking in more calories than what is expended leads to obesity, says Stanford Health Care. The effects of obesity are serious and include heart disease, Type 2 diabetes and bone dise


Obesity in adults causes susceptibility to diseases such as diabetes, certain cancers and heart disease, according to WebMD. Other ailments linked to obesity include asthma, sleep apnea, gout, gallbladder disease, osteoarthritis and stroke. Obesity in children leads to problems such as elevated leve


According to the Centers for Disease Control and Prevention, an adult with a body mass index of 30 or higher is considered obese. For children of the same sex and age, a BMI at or above the 95th percentile is considered obese.


Factors that contribute to America's widespread obesity include access to cheap, unhealthy food and its sedentary culture that discourages exercise. Obesity is primarily caused by a combination of social and environmental factors.


The clinical definition of obesity is weight that is higher than what is considered a healthy weight for a given height, with a body mass index of 30.0 or more, states U.S. Centers for Disease Control and Prevention. An adult with a BMI of 30.0 meets the definition of obese.


Pictures of obese women can be found on several stock photo websites, including Shutterstock and Pond5. Photos of obese women can also be found on websites such as Bajiroo, and more humorous photos of obese women can also be found on Chill Point.