12 results found

Search Results for: operator

Operator

Definition noun, plural: operators (1) (genetics) A segment of DNA where the repressor binds to, thereby preventing the... Read More

Operator region

operator region (Science: genetics) dNA sequences which signal the initiation of transcription when... Read More

Gene Action – Operon Hypothesis

Reviewed by: Mary Anne Clark, Ph.D. Some genes are switched on or off depending on environmental conditions. The... Read More

Repressor protein

Definition noun, plural: repressor proteins A protein in which its binding to the operator inhibits the transcription of one... Read More

Inactive repressor

Inactive repressor a repressor that cannot combine with an operator gene until it has combined with a corepressor (usually a... Read More

Lac operon

Lac operon --> lactose operon group of adjacent and coordinately controlled genes concerned with the metabolism of... Read More

Regulatory gene

Definition noun, plural: regulatory genes A gene that is involved in the production of a substance that controls or... Read More

Promoter

Definition noun, plural: promoters (chemistry) A substance that is capable of increasing the activity of a catalyst to... Read More

Operon

Definition noun, plural: operons A group of genes or a segment of DNA that functions as a single transcription unit. It is... Read More

Inducer

An agent capable of activating specific genes.A molecule that inhibits the action of the repressor of an operon, preventing... Read More

Ultrasound

ultrasound (Science: investigation) A type of imaging technique which uses high-frequency sound waves. This is highly... Read More

Promoter gene

Definition noun, plural: promoter genes (genetics) A site in a DNA molecule at which RNA polymerase and transcription... Read More