Question

Match each term with its definition. a sequence of DNA located upstream of a gene that signals the start of transcription a transcription factor that prevents mRNA synthesis by binding to the operator of a gene an element that disrupts the signal between enhancers and promoters a gene that controls the expression of one or more genes by promoting or inhibiting transcription a small molecule that activates transcription by inhibiting the action of a repressor protein a short DNA sequence that can be recognized by a repressor protein

Answer 1

Answer:

A promoter refers to a DNA sequence, that is, situated upstream of a gene and signals the start of transcription.

A repressor refers to a transcription factor that prevents transcription by combining with the operator site.

An insulator refers to an element that obstructs the signals between the promoters and enhancer.

A regulatory gene refers to a gene, which monitors the expression of one or more genes by preventing or encouraging transcription.

An inducer refers to a molecule that stimulates the synthesis of mRNA by disabling the protein, which inhibits the transcription.

An operator refers to a short sequence of DNA situated close to the promoter region, and is recognized by a repressor protein.