Many biofilm-specific phenotypes are controlled by "quorum sensing." This system allows bacteria to regulate gene expression according to the concentration of in its immediate environment. a) trueb) false

True

Explanation:

this has been seen as an evolutionary step in bacteria activity. it also allows them to control the activity of the the whole community

A) True

Quorum sensing is the system that allows bacteria to regulate gene expression according to the concentration of in its immediate environment.

Explanation: Quorum sensing is the process by which bacteria cells communicate among/within themselves and share information about their density and as well adjust their gene expression accordingly.

In quorum sensing ,there is production, detection and response of bacteria cells to Autoinducers (extracellular signalling molecules).

Increase in bacterial population density brings about the accumulation of autoinducers in the environment,the bacteria cell now monitors the information of the autoinducers inorder to track changes in their cell number and collectively alter their gene expression.

Quorum sensing controls the disease causing ability of a bacterial cell.

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i believe the correct answer is d