background: dermatoglyphics are the dermal ridge configurations on the digits, palms and soles. dermatoglyphic polymorphism results from the co-operation of genetic and environmental factors. the dermatoglyphic analysis is a valuable completion of initial diagnosis of some syndromes genetically determined. our objective was to assess dermatoglyphics study results against standard chromosomal an...

Down syndrome is one of the most common causes of mental retardation observed in approximately 1/700 live birth. The use of two or more STR markers related to chromosome 21 facilitates the diagnosis of Down syndrome within about six hours from the collection of the samples. This is the first study has been performed in Iranian population to assess the diagnostic value of using small tandem repe...