☤ MD ☞✪ Using a panel of ultrasound markers in a systematic fashion as a part of screening has been referred to as a "genetic sonogram". The presence of one of these markers may increase the possibility of Down syndrome.
Down syndrome is caused by an excess of genetic material. Chromosome no 21 that is involved in the origin of Down syndrome. There are different types: Tritomy 21 type, mosaic type and translocation type of Down syndrome