Which of these mechanisms exerts gene control by suppressing transcription in eukaryotes? A. Acetylation of histone proteins B. Methylation of DNA C. Action of activator proteins
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Acetylation of histone proteins: This mechanism generally promotes transcription by relaxing the chromatin structure, making it more accessible to the transcription machinery. B. Methylation of DNA: This mechanism typically suppresses transcription in eukaryotes Show more…
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Control of gene expression in eukaryotes includes all of the following except a. alternative RNA splicing. b. binding of proteins to DNA. c. transcription factors. d. stabilization of mRNA by miRNA. e. DNA methylation.
Which of the following apply to histone proteins? A. occur in eukaryotes B. occur in prokaryotes C. small proteins with many basic amino acids D. are organized into octamers E. are replicated in a "conservative" manner F. acetylation "loosens" the compaction of nucleosomes G. when methylated leads to the loss of GC base pairs H. associate via a chaperone to the sliding clamp during DNA replication I. essentially "get in the way" of DNA metabolic reactions, i.e., inhibit these reactions
Adi S.
Which of the following is NOT a method of eukaryotic gene regulation? a.) DNA methylation b.) chromatin remodeling c.) alternative splicing of mRNA d.) adding a phosphate group to a transcription factor to activate it e.) all of the above are methods of eukaryotic gene regulation
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