Deoxyribonucleic Acid-dependent Ribonucleic Acid Polymerase from Drosophila melanogaster Embryos

Ribonucleic acid polymerase from Drosophila melanogaster embryos has been isolated and partially characterized. Drosophila embryos contain two major forms of the enzyme which are further resolvable into four distinct enzyme forms. This resolution depends on exposure of the enzyme to phosphocellulose prior to chromatography on diethylaminoethyl cellulose.