UPGMA (Unweighted Pair Group Method with Arithmetic Mean)

UPGMA (Unweighted Pair Group Method with Arithmetic Mean) is a method used to build a family tree or diagram that shows how different groups or items are related. It starts by measuring the differences between each pair, then gradually joins the closest groups together, calculating the average differences for each new combined group. This process continues until all groups are connected in a tree-like structure, illustrating their evolutionary or similarity relationships based on average distances. It’s commonly used in biology to understand how species or genes are related.