Nuclei, isolated from various developmental stages of the eggs of the milkweed bug Oncopeltus fasciatus, have been assayed for RNA polymerase activity in the presence of Mg2+ ions and in a low salt environment. This activity changes during development. These changes can be correlated with in vivo changes in the rate of RNA synthesis. The base composition of the RNA transcribed in vitro is intermediate between ribosomal RNA and DNA-like RNA.
ASJC Scopus subject areas
- Insect Science