If the mother is obese, the daughter will be obese, and if the mother is obese, the probability of her daughter being obese will increase by 10 times. In addition to genetic factors, the mother's diet and weight during pregnancy will also affect her children. Heredity, also known as heredity or biological inheritance, refers to the phenomenon that the genes whose parents have reached the corresponding traits are passed on to their offspring through asexual reproduction or sexual reproduction, so that the offspring can obtain the genetic information of their parents. Through heredity, differences between individuals can be accumulated, and species can evolve through natural selection. The phenotype of an object is the result of the interaction between genotype and environment. Therefore, not all biological phenotypes are heritable. For example, people's tanned skin comes from the interaction between phenotype and sunlight, so tanning will not be passed on to future generations.