Researchers noted that when a lysine residue on a histone is acetylated, its side chain becomes neutral in charge. Combined with the information in the passage, which of the following conclusions will the researchers most likely reach?
A. Histone deacetylation generally decreases gene expression.
B. Histone acetylation tends to promote a more condensed chromatin structure.
C. Histone deacetylation reduces the extent to which the gene in question will be replicated.
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