Plant seeds contain storage proteins that are encoded by pla

Plant seeds contain storage proteins that are encoded by plant genes. When the seed germinates, these proteins are rapidly hydrolyzed (i.e., the covalent bonds between amino acids within the polypeptides are broken), which releases amino acids for the developing seedling. Would you expect the genes that encode plant storage proteins to evolve more slowly or more rapidly than genes that encode enzymes?

Solution

Enzymes have active sites and are functionally important with high specificity, hence they will evolve more slowly due to the selection pressure in comparison to plant storage proteins (which does not have any particular function other than providing nutrition).