In biology, homology is similarity in anatomical structures or genes between organisms of different taxa due to shared ancestry, regardless of current functional differences.

The similarity of a structure or function of parts of different origins based on their descent from a common evolutionary ancestor is homology. Analogy, by contrast, is a functional similarity of …

homology, in biology, similarity of the structure, physiology, or development of different species of organisms based upon their descent from a common evolutionary ancestor.

Jul 14, 2023 · In biology, homology refers to similarities caused by shared ancestry between two structures or genes from distinct species.

May 12, 2025 · Homology, a cornerstone concept in evolutionary biology, is the study of shared ancestry manifested in similar structures, sequences, or other traits across different taxa.

Homologies can be identified by comparing the anatomies of different living things, looking at cellular similarities, studying embryological development, and studying vestigial structures within individual …

Oct 31, 2025 · homology (countable and uncountable, plural homologies) The relationship of being homologous; a homologous relationship.

HOMOLOGY definition: the state of being homologous; homologous relation or correspondence. See examples of homology used in a sentence.

In mathematics, the term homology, originally introduced in algebraic topology, has three primary, closely related usages. First, the most direct usage of the term is to take the homology of a chain …

Oct 17, 2008 · To test a claim of homology, scientists use a wide range of traits to trace the family tree of the organisms they are interested in. Then, they look at the trait they think might be homologous.