Final answer:
Alternative splicing is a mechanism that allows different combinations of introns and exons to be removed from the primary transcript, leading to the production of multiple proteins from one gene. This is a common mechanism of gene regulation in eukaryotes.
Step-by-step explanation:
Alternative splicing is a mechanism that allows different combinations of introns, and sometimes exons, to be removed from the primary transcript. This allows different protein products to be produced from one gene. Alternative splicing is a common mechanism of gene regulation in eukaryotes, with up to 70% of human genes expressing multiple proteins through alternative splicing.