The dental formula of a rat is:

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(B) The dental formula represents the number of teeth in one-half of the upper and lower jaws. For a rat,the dental formula is $\frac{1003}{1003}$. Th

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$\frac{1003}{1003}$

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(B) The dental formula represents the number of teeth in one-half of the upper and lower jaws. For a rat,the dental formula is $\frac{1003}{1003}$. This means in each half of the jaw,there is $1$ incisor,$0$ canines,$0$ premolars,and $3$ molars. Total teeth = $(1+0+0+3) 	imes 2 	ext{ (for both sides)} 	imes 2 	ext{ (for upper and lower jaws)} = 4 	imes 4 = 16$ teeth.

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