During transcription, what happens to the rna polymerase of a repressive protein attaches to the operator?

If a repressive protein attaches to the operator RNA polymerase cannot attach to the promoter.

Repressor is a protein which binds to the DNA (or RNA), more precisely to the operator or associated silencers

and thus inhibits the expression of one or more genes. Its mechanism is to block the attachment of RNA polymerase to the promoter. As a result, transcription is stopped.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !