In comparison to my cladogram, Figure 3-1 illustrates a more complex arrangement of the evolutionary history. You can physically see how the three domains interact and transfer genes horizontally. The cladogram and Figure 3-1 both illustrates horizontal gene transfer, the movement of genetic information in unicellular or multicellular organisms not through vertical transmission. The figure goes an extra step by breaking down the Domains into specific kingdoms. In contrast, the cladogram shows the evolutionary history of characteristics in each Domain, and how they relate to each other. The cladogram makes a broad generalization about the domain. For example, in the characteristic DNA histone for Archaea it states that it is “present in some
