Protein Structure
Individuals with PKU disease are mentally retarded unless

None of these
homogentisic acid in the diet is restricted
tyrosine in the diet is restricted
phenylalanine in the diet is restricted

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Protein Structure
Cyclins are proteins that

regulate ability of cells to invade tissue
regulate apoptosis of damaged cells
regulate passage from one stage of cell division to another
None of these

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Protein Structure
Metastasis involves

metalloprotein levels
ability of cells to dissolve cellular matrix
All of these
decreased levels of proteins that regulate metalloproteins

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