Industry Statement on the recycling of asphalt mixes and use of waste of asphalt pavements. Acknowledgements. This document has been developed under the authority of The European Asphalt Pavement Association. (EAPA) Committee on Health, Safety and Environment.
They do this by alternative splicing (AS). Alternative splicing means, that during the RNA splicing event different combinations of exons can be joined together to create a diverse array of mRNAs from a single pre-mRNA. When these are translated they produce different proteins which do different things.
In other RNA viruses, the RNA is a complementary copy of mRNA and these viruses rely on the cell's or their own enzyme to make mRNA. These are called negative-sense RNA viruses. In viruses made from DNA, the method of mRNA production is similar to that of the cell.