Multiple choice The syndrome resulting from the microdeletion of chromosome 22q11.2. is Velo-cardio-facial syndrome Prader-Willi syndrome Angelman syndrome Williams syndrome Reveal answer Fill a bubble to check yourself A Correct answer Explanation It results from the microdeletion of chromosome 22q11.2. Usually it is not visible cytogenetically, but detectable by FISH or comparative genomic hybridization.