Assertion: Sigmoid growth curve consists of four parts.
Reason : Lag phase is called as grand phase of growth.

Options

A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C. If the assertion is true but the reason is false
D. If both the assertion and reason are false

Answer

C

Explanation

Sigmoid growth curve is a growth rate where every cell divides with all the daughters growing and dividing again. It consists of four phases: lag phase, log phase or exponential phase, stationary phase and declining phase. The lag phase is the initial phase of growth when the rate of growth is very slow.