NEET BIOLOGY

BIOLOGY IN HUMAN WELFARE

HUMAN HEALTH AND DISEASE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Quorum sensing is:
A
viral communication
B
bacterial communication
C
bacterial reproduction
D
viral reproduction
Explanation: 

Detailed explanation-1: -Quorum sensing is a process of cell–cell communication that allows bacteria to share information about cell density and adjust gene expression accordingly.

Detailed explanation-2: -Quorum sensing bacteria produce and release chemical signal molecules called autoinducers that increase in concentration as a function of cell density. The detection of a minimal threshold stimulatory concentration of an autoinducer leads to an alteration in gene expression.

Detailed explanation-3: -Both Gram-negative and Gram-positive bacteria apply quorum sensing for communication, but they produce different auto-inducers.

Detailed explanation-4: -Many species of bacteria use quorum sensing to coordinate gene expression according to the density of their local population. In a similar fashion, some social insects use quorum sensing to determine where to nest.

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