THE CELL
CELL COMMUNICATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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reception
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transduction
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response
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Detailed explanation-1: -The process of turning genes on and off is known as gene regulation. Gene regulation is an important part of normal development. Genes are turned on and off in different patterns during development to make a brain cell look and act different from a liver cell or a muscle cell, for example.
Detailed explanation-2: -Activator proteins bind to regulatory sites on DNA nearby to promoter regions that act as on/off switches. This binding facilitates RNA polymerase activity and transcription of nearby genes.
Detailed explanation-3: -Activation of a gene-transcription-is kicked off when proteins called transcription factors bind to two key bits of DNA, an enhancer and a promoter. These are far from each other, and no one knew how close they had to come for transcription to happen.