Читать книгу Pet-Specific Care for the Veterinary Team - Группа авторов - Страница 226

DNA stores biological information and that information is conserved and replicated as the strands peel apart and are duplicated. Just like a photocopier, cells copy the DNA throughout an animal's life as cells are replenished and, for the most part, there are very few errors in the duplication process.

Genetic diseases usually cause problems because a mutation creates a poorly functioning facsimile of the normal gene product (Box 3.1.1). Such a mutation often happens because of innocent‐appearing mishaps that result in an altered product.