Most sensitive sonological indicator for aneuploidy is
Ans. is 'c' i.e. Nuchal translucency Rumack writes - "The most effective sonographic marker of trisomy 21 and other chromosomal defects is increased nuchal translucency (NT) thickness at 11 to 14 weeks gestation."
Gestational sac volume
Crown-rump length
Nuchal transluscency
Serum P HCG level
Radiotherapy