For Which of the Testing Situations Listed Is FISH (Fluorescent

Multiple Choice

For which of the testing situations listed is FISH (fluorescent in situ hybridization) most appropriate?

A) A complete chromosome count with examination of chromosomes for abnormalities must be done.
B) A previously undescribed genetic defect is suspected.
C) Karyotype appears normal by classic cytogenetics but phenotype suggests genetic abnormality.
D) All of the above.