Reciprocal translocations are one of the most common structural chromosome abnormalities in our species and are present in one in 500 unselected newborns studied with a moderate level of banding. 1 ...

Chromosome translocations are relatively common in humans. They result from the exchange between nonhomologous autosomes. Approximately one couple out of 600 carries a reciprocal translocation [1].

MONGOLISM is usually the result of trisomy of a small acrocentric chromosome in Group 21–22 in the Denver Classification. This is generally referred to as 21-trisomy. These patients have a somatic ...