The gene promoter sequences, commonly used in gene cloning experiments are derived from __________________.

The gene promoter sequences, commonly used in gene cloning experiments are derived from MV(Tobacco Mosaic Virus). Tobacco mosaic virus (TMV) is a positive-sense single-stranded RNA virus species in the genus Tobaco virus that infects a wide range of plants, especially tobacco and other members of the family Solanaceae. Promoter sequences are DNA sequences that define where transcription of a gene by RNA polymerase begins.