<prompt> Lemon sign Banana sign on Antenatal USG is seen inDown syndromeChiari MalformationTurner syndromeKlienfelters syndrome  <response>: The Anterior bossing of frontal bone is called as Lemon sign Wrapping of cerebellum around brain stem is called as Banana sign Lemon sign and Banana sign are features of Chiari -II Malformation and also seen with spina bifida. 