WNT3 is a gene that plays a crucial role in the development of various tissues in the body. It is part of the Wnt signaling pathway, which is important for cell communication and regulation during embryonic development. This gene helps in the formation of structures such as limbs and organs. Mutations or alterations in the WNT3 gene can lead to developmental disorders. For example, issues with this gene have been linked to conditions like syndactyly, where fingers or toes are fused together. Understanding WNT3 is essential for researchers studying developmental biology and genetic disorders.