Abstract:
Cells in an organism are under constant exposure to
extrinsic and intrinsic stressors. Molecular mechanisms
are in place to dampen the detrimental effects on the
cell at the level of cellular pathways and also at the
level of gene expression. Ribonucleic Acid (RNA)
Polymerase II is the enzyme that synthesizes messenger
Ribonucleic Acid (mRNA) in eukaryotes, as the first
step of gene expression.