the percentage of the inheritance of obesity that is accounted for by genetic factors is about
Genetics of obesity Polymorphisms in various genes controlling appetite and metabolism predispose to obesity under certain dietary conditions. The percentage of obesity that can be attributed to genetics varies widely, depending on the population examined, from 6% to 85%.[6] As of 2006, more than 41 sites on the human genome have been linked to the development of obesity when a favorable environment is present.[7] The involvement of genetic factors in the development of obesity is estimated to be 40â€“70%. Some of these obesogenic or leptogenic genes may influence obese individuals response to weight loss or weight management.[8]
Introduction to evolution The missing information needed to help explain how new features could pass from a parent to its offspring was provided by the pioneering genetics work of Gregor Mendel. Mendel's experiments with several generations of pea plants demonstrated that inheritance works by separating and reshuffling hereditary information during the formation of sex cells and recombining that information during fertilisation. This is like mixing different hands of playing cards, with an organism getting a random mix of half of the cards from one parent, and half of the cards from the other. Mendel called the information factors; however, they later became known as genes. Genes are the basic units of heredity in living organisms. They contain the information that directs the physical development and behavior of organisms.