Content provided by the US Census bureau for the years 2010, 2011, 2012, 2013, 20140and 2015.
Synteny. The presence of two or more genetic loci on the same chromosome. Extensions of this original definition refer to the similarity in content and organization between chromosomes, of different species for example.
Syndactyly is the most common congenital malformation of the limbs, with an incidence of 1 in 2000-3000 live births. Syndactyly can be classified as simple when it involves soft tissues only and classified as complex when it involves the bone or nail of adjacent fingers.It is a shared feature of more than 28 syndromes, including Poland, Apert, and Holt-Oram syndromes.n simple syndactyly, the third web space between the long finger and the ring finger is the area most commonly involved, followed by the fourth, second, and (rarely) first web spaces. Bilateral involvement is found in 50% of patients.