Question

Dental formula of elephant is
A. 1,0,0,3
     0,0,0,3

B. 1,0,0,3
    1,0,0,3

C. 1,0,1,3
     1,0,2,3

D. 1,0,3,3
     2,0,3,3

Answer 1

Hint: Dental formula is a method which determines the number and the arrangement of teeth in animals and humans. Every animal has different dental formula.

Complete answer:
It is a formula which is expressed as : The number of each type of teeth in the upper jaw/ The number of each type of teeth in the lower jaw. The four types of teeth are
I - Incisors
C - Canines
M - Molars
P - Premolars

Elephants are polyphyodont which means they have tooth rotations throughout their life. The total number of teeth in an Elephant are 26. There are 2 incisors in their upper jar which are called TASKs. There are no incisors in the lower jaw. Since they are herbivores, they do not have any canines. They have 6 molars and 6 premolars in each jaw.

Let us analyze the options to find out the correct option.
Option A: The formula correctly depicts the number and arrangement of each type of teeth in an Elephant. Hence, this is the correct option.
Option B, C and D: These are incorrect options.

Hence, the correct answer is option (A)

Note: 1.Elephants have highly derived dentition.
2.Their upper incisors are adapted as Tusks and they are deciduous and permanent.