_________ genes are the one which directly control the switching off and on of the transcription process, in the operon model of gene regulation.
_________ genes are the one which directly control the switching off and on of the transcription process, in the operon model of gene regulation.
The correct option is A Operator
Operator genes contain the codes that are necessary to begin the process of transcribing DNA into mRNA. The process of transcription is prevented when a repressor protein binds to the operator region. When a repressor protein binds with the operator, the operon will always be in switch off condition whereas when the operator is not occupied by the repressor, it will switch on the operon thus leading to the formation of mRNA.
Promoter genes are the sequences of DNA which are required for the binding of the RNA polymerase to initiate transcription.
Regulatory genes are those involved in controlling the expression of one or more genes. In operon model, regulatory genes code for the repressor proteins whose presence or absence controls the process of transcription.
Structural genes refer tos the sequence of DNA that code for any RNA or protein product other than regulatory factors i.e., repressor.
Operator genes contain the codes that are necessary to begin the process of transcribing DNA into mRNA. The process of transcription is prevented when a repressor protein binds to the operator region. When a repressor protein binds with the operator, the operon will always be in switch off condition whereas when the operator is not occupied by the repressor, it will switch on the operon thus leading to the formation of mRNA.
Promoter genes are the sequences of DNA which are required for the binding of the RNA polymerase to initiate transcription.
Regulatory genes are those involved in controlling the expression of one or more genes. In operon model, regulatory genes code for the repressor proteins whose presence or absence controls the process of transcription.
Structural genes refer tos the sequence of DNA that code for any RNA or protein product other than regulatory factors i.e., repressor.
