Heredity and heritability

Philosophical discussions of heredity have focused on the sustainability of heritability analyses and more recently on the units of heredity. Here I introduce the concept of heritability and the problems associated with it. Next the units of heredity discussion is introduced. Here I consider alternatives to the view that DNA is the most important hereditary material. The information view of heredity is introduced and discussed and finally, several alternative or supplementary views of heredity are introduced.