Question: Extract the answer to the question from the following context. Question: Trans-splicing and alternate splicing, which one is used for one gene to form new genes? Context: Early work in molecular genetics suggested the model that one gene makes one protein. This model has been refined since the discovery of genes that can encode multiple proteins by alternative splicing and coding sequences split in short section across the genome whose mRNAs are concatenated by trans-splicing.
Answer:
alternative splicing