1. To address these deficiencies, other techniques using enzyme assay have been developed. 2. Both carrier and prenatal testing using enzyme assay became available in the 1970s. 3. An example progress curve for an enzyme assay is shown above. 4. The rate data used in kinetic analyses are commonly obtained from enzyme assays . 5. Enzyme assays are commonly done using radioactively labeled substrates.6. Different mutations have different effects on enzyme assay results. 7. All enzyme assays measure either the consumption of substrate or production of product over time. 8. Enzyme assay -- a 90-minute sensitive technique; 3.9. Because of pseudodeficiency alleles, the results of enzyme assay testing in one population cannot be generalized to other populations. 10. Using that phrase would shorten the lead, since we could replace " enzyme assay test " with " blood test ".