Complex sentence: RNA transcripts are produced from the integrated viral DNA and serve both as mRNAs to direct the synthesis of viral proteins and later as RNA genomes of the new viral particles.Viral particles escape from the cell by budding from the plasma membrane, each enclosed in a membrane envelope.
Split into simpler sentences: RNA transcripts are produced from the integrated viral DNA and serve both as mRNAs to direct the synthesis of viral proteins and later as the RNA genomes of new viral particles. These escape from the cell by budding from the plasma membrane, each enclosed in a membrane envelope.