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Question : Do you think that the alternate splicing of exons may enable a structural gene to code for several isoproteins from one and the same gene? If yes, how? If not, why so?

Answer»

Solution :Functional mRNA of STRUCTURAL genes need not always include all of it sexons. This alternate splicing of exons is sex-specific, tissue-specific, and even DEVELOPMENTAL stage-specific. By such alternate splicing of exons, a single gene may encode for several isoproteins and/or proteins of similar class. In absence of such a kind of splicing, there should HAVEBEEN new genes for EVERY protein/isoprotein. Such an extravagancy has been avoided in natural PHENOMENA by way of alternate splicing


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