Question

You have two identical tubes of wild-type V. harveyi (with the same cell concentration in each tube) in fresh media. To one tube, you add CFS from a light-producing V. fischeri culture, and to the other tube you add an equal volume of fresh media. If both tubes of V. harveyi have the same light production, what can you conclude? Explain

Answer 1

Answer:

It can be concluded that CFS has no effect on the light production of V.harveyi.

Explanation:

The both tube contain same cell concentration of V.harveyi.Now CFS is added from a light producing V.fischeri which ultimate result in the production of light by V.harveyi.

      On the other hand V.harveyi cells present on another tube can itself produce light because according to the question fresh media is added in this tube inplace of CFS.

V.harveyi of both tubes produces same amount of light.From this point of view it can be stated that V.harveyi itself can generate light, it does not need addition of any CFS from outside.