Answer :
Answer:
At least in some cases, a single gene must code for more than one protein
Explanation:
A single gene can code more than one protein and it is done by the process of alternative splicing. Alternative splicing enables the excision, splicing of different introns and even the splicing of exons. For example, if there are 3 exons in the pre-mRNA, after the splicing, mature mRNA can contain all 3 exons or only exon 1 and 3.
In different cells, genes are differentially expressed (and differentially spliced) depending on the tissue type.