Bone ossification test is conducted to ascertain human

Q. Bone ossification test is conducted to ascertain human—

A. Brain efficiency
B. Tentative age
C. Tentative height
D. Drug addiction

Answer: Tentative age

Bone formation, also called ossification, process by which new bone is produced.Ossification begins about the third month of fetal life in humans and is completed by late adolescence. The cartilage cells die out and are replaced by osteoblasts clustered in ossification centres.

Timetable for human ossification

Time period	Bones affected
Third month of fetal development	Ossification in long bones beginning
Fourth month	Most primary ossification centers have appeared in the diaphyses of bone.
Birth to 5 years	Secondary ossification centers appear in the epiphyses
5 years to 12 years in females, 5 to 14 years in males	Ossification is spreading rapidly from the ossification centers and various bones are becoming ossified
17 to 20 years	Bone of upper limbs and scapulae becoming completely ossified
18 to 23 years	Bone of the lower limbs and os coxae become completely ossified
23 to 25 years	Bone of the sternum, clavicles, and vertebrae become completely ossified
By 25 years	Nearly all bones are completely ossified

With ossification test of bone tentative age can be ascertained.