<prompt> A child;s growth variation is normal but bone development is not according to the chronological age. What is diagnosis?GeneticDwarfismConstitutional delayFamilial sho stature  <response>: In constitutional delay, the bone age corresponds to the child;s height age but is lower than chronological age by 2-4 yrs . Skeletal age is usually assessed by radiographic study of left hand and wrist. Ref- OP.Ghai, 9th edition 