e. Methylation of DNA increases gene expression. f. Acetylation of histone proteins is decreases gene expression g. Phosphorylation of histone proteins causes DNA to condense more, decreasing gene expression.
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Acetylation of histone proteins usually increases gene expression, so statement f is incorrect. Phosphorylation of histone proteins can cause DNA to condense more, decreasing gene expression, so statement g is correct. Show more…
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What effect does DNA methylation have on gene expression? It increases it. It decreases it. It depends on which base is methylated. DNA methylation has no effect on gene expression. Increased mRNA stability should have what effect on the levels of the corresponding protein in a cell? Higher protein levels. Lower protein levels. mRNA stability does not affect protein levels. It depends on the cell type. What class of enzymes generally open up chromatin to increase gene expression? Histone acetyltransferases. Histone deacetylases. DNA methyltransferase. Heterochromatin protein. Which type of transcription factor binds both RNA polymerase and general transcription factors? Histone acetyltransferase. Repressor. Activator. Heterochromatin protein. The regulation of most gene expression occurs at the level of transcription initiation. Chromatin structure. Translation initiation. mRNA stability.
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Which of the following increases gene expression? Histones Phosphorylation Histone methylation Repressor protein binding DNA DNA methylation DNA condensation
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If acetyl groups are attached to portions of the nucleosomes, the DNA will likely become less condensed, and gene expression will increase.
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