Hidden Features of iPhone

match the following feature with their glands. a. Sella tursica (features), (i) thymus (Glands). b. Atropy with age(features), parathyroid (Glands). c. Endemic disease(feature), Neurohypophysis (Glands). d.Hypercalcemic hormone (feature), thyroid(glands)

Apperance of hidden character in some progeny of F_(2) population indicates

Which of the following is a consequence of hidden hunger ?