Multiple Choice
In the context of gene expression control, which of the following best explains how genetically identical cells can become specialized (differentiate) into different cell types?
7. Gene Expression
Basics of Gene Expression Control
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In a typical differentiated (specialized) human somatic cell, approximately what percentage of the genome’s genes are actively expressed (transcribed) at any given time?
A
About 80–90% of genes
B
About 10–20% of genes
C
About 1–2% of genes
D
About 50–60% of genes
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