The mutations in a genome similar to printing a book.
Explanation:
Every letter in a book resembles the mutations in the genome. errors that appear in one copy can be copied to all other copies of the book. Like printing errors, mutations always negatively affect the final product. Just as a single book is printed at a time, a single mutation is read at a time. Though mutations are not always negative and can help in the survival of the species when selection pressures change.
