Help me matching this plz..i have many but i want ur help with only this?

Negative Control


Positive Control


Promoter


Enhancer


Operator


Operon





A. Binding sites for activator proteins


B. Noncoding sequence that makes where to begin transcription


C. When promoters and a set of operators control more than one gene


D. When regulatory proteins stop or slow gene action


E. When regulatory proteins promote or enhance gene action


F. Binding site for repressor

Help me matching this plz..i have many but i want ur help with only this?
A. - Positive Control


B. - Promoter


C. - Operon


D. - Operator


E. - Enhancer


F. - Negative Control

buy flowers