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Example of Homology

Homology can be described as a study of common factors in organism biology. These common factors create excellent frames of reference for systematic study, and identify relationships between organisms. There are two fundamental streams of homology, structural and genetic. Structural homology is the original method of homological classification and identification. Genetic homology in various forms including orthology, paralogy, etc., has become an essential tool in genetic studies, helping to identify, classify, and locate differences in long complex gene sequences. Minor differences in genetic sequences can in fact explain a lot about gene functions and the 'sense' or functional context of a gene. The two forms of homological study often combine to clarify or positively identify inherited characteristics and structures.

Examples of Homology:


Image Example of Homology:

Forelimbs in mammals provide one example of homology.