Alternative Splicing (IMAGE)
Caption
Alternative splicing occurs during gene expression and permits a single gene to code for multiple proteins. In this process, pieces of the gene, known as exons, may be included within or excluded from the final, processed messenger RNA (mRNA) produced from that gene. The resulting proteins translated from alternatively spliced mRNAs will contain different amino acid sequences and, often, altered biological functions. Alternative splicing allows the human genome to produce far more proteins than would be expected from its roughly 20,000 protein-coding genes.
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