Heredity, is basically the passing on of genetic traits from parents to offspring’s. We can inherit a lot from our parents like hair, eye color, height but we can’t inherit everything. Inheritance follows a particular pattern.
Chromosomes that are form our DNA takes in order to get passed on from parent to child. Gene is a section of DNA that is in a specific location on a chromosome that contains information that determines a trait. Mice fed high fat diets and the changes in the chemical flags on their DNA, but female children of these obese mice will inherit and will end up to be around 20% fat than the skinny mice. In another example to explain how heredity works in mice is that male mice which are trained to fear a fruity odor passed sensitivity of this smell on to their children and even can be passed on to their grandchildren as well.