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Given the Dental Formula of Human Beings - CBSE (Science) Class 11 - Biology

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Question

Given the dental formula of human beings

Solution

The dental formula expresses the arrangement of teeth in each half of the upper jaw and the lower jaw. The entire formula is multiplied by two to express the total number of teeth.

The dental formula for milk teeth in humans is `2102/2102xx2 = 20`

Each half of the upper jaw and the lower jaw has 2 incisors, 1 canine, and 2 molars. Premolars are absent in milk teeth.

The dental formula for permanent teeth in humans is: `2123/2123xx2 = 32`

Each half of the upper jaw and the lower jaw has 2 incisors, 1 canine, 2 premolars, and 3 molars. An adult human has 32 permanent teeth.

 

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APPEARS IN

 NCERT Solution for Biology Textbook for Class 11 (2018 to Current)
Chapter 16: Digestion and Absorption
Q: 6 | Page no. 267

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Solution Given the Dental Formula of Human Beings Concept: Digestive System - Alimentary Canal.
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