The health of the scalp is vital to the health of the hair, says Kingsley. Scalp massages aid in the removal of dead skin cells from the scalp -- and a flaky scalp is known to worsen hair loss in certain individuals. It can be very beneficial to those who suffer from scalp conditions such as dandruff, seborrheic dermatitis and psoriasis.
exists and is an alternate of. Merge this question into. Split and merge into it. Answered by The Community. Making the world better, one answer at a time. The repressor binds to the operator and blocks attachment of RNA polymerase to the promoter, preventing transcription of genes.
In the lac operon, allolactose binds to the repressor protein, allowing gene transcription, while in the trp operon, tryptophan binds to the repressor protein effectively blocking gene transcription. In both situations, repression is that of RNA polymerase transcribing the genes in the operon.his operon contains five structural genes: trp E, trp D, trp C, trp B, and trp A, which encode tryptophan synthetase. It also contains a repressive regulator gene called trp R. Trp R has a promoter where RNA polymerase binds and synthesizes mRNA for a regulatory protein.