Genes and cistrons have control regions {operon}, where repressors bind to prevent transcription.
Genes {repressor gene} can make repressors, which bind to operator regions.
Repressors bind to operon regions {operator region} that precede coding regions.
RNA polymerase binds to regions {promoter region} just before coding regions. Repressors block RNA polymerase binding. Derepressors can bind to repressors at allosteric sites to release repressors from operators. Corepressors can bind to repressors to aid repression. Inducers can bind to repressors to block repression.
RNA-polymerase-III 50-base internal-control regions have two regions {zinc finger} that bind zinc.
Oligonucleotides {primer DNA} can start polymerization by DNA polymerase.
Repeated CGs {CpG island} can be in regulatory DNA.
4-Genetics-Nucleic Acid-Regions
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Date Modified: 2022.0225