A cladogram can be defined as a diagram that represents shows the relationship between the organisms that are closely related to each other. It can be considered a sort of phylogenetic tree. However, it shows the relationships between the common ancestor with clades only. For example, a cladogram does not show the time of evolution and the accurate distance from the ancestors in common, but it shows that compared to gorillas, humans are more loosely related to chimpanzees.
A cladogram is a tree-like diagrammatic representation that can best be drawn using lines. Each node of a cladogram represents two groups splitting from an ancestor in common. At the ends of the lines, clades are summarized, and the members of a unique clade share some similar characteristics. Instead of morphological characteristics, clades are built using molecular differences.
However, the construction of cladograms can also be done using the correct behavioral and morphological data. A clade can be considered a group of organisms that comprises all the evolutionary descendants from an ancestor in common. A cladogram can not depict the change in evolution in the group. It also cannot indicate the genetic distance or the time of evolution. At the end of every branch of the cladogram, there is a clade. It begins with the last ancestor in common. Usually, on the morphological characters, Cladograms are formed.