Step-by-step explanation:
To help patients understand testing procedures and results To be able to draw blood proficiently and safely To perform standard karyotyping on routine blood specimens To serve as a backup genetics technician in small laboratories A woman whose sister tested positive for a specific mutation in the BRCA1 gene, which increases the risk for breast and ovarian cancer, is found not to have that mutation but does have a mutation of unknown significance near the known mutation site.