The correct answer id FALSE. Yes, allosteric regulation is the process wherein the lactose binds to the lac repressor and inactivates it by causing the shape it change. However, the process by which glucose causes cAMP levels in the cell to drop, therefore preventing CAP from stimulating expression of the lac structural genes, is known as catabolite repression and not catabolite stimulation.
Transcription factors are the proteins that are responsible in the process of conversion of DNA into RNA.
These proteins have specific sites present on the DNA where they bind and thus, facilitate the process of transcription.
These proteins have domains that help them to bind to these specific sites.
These transcription factors help in the regulation of fo transcription by controlling the expression of the gene so that they are expressed in the right amount and correct time.