Do I have to disclose any predictive genetic test results I receive through as part of a research study?

No. You will not need to disclose any predictive genetic test results that have been acquired as part of a research study, and an insurer will not ask you to disclose these results.  

Even if you do (unintentionally) disclose this information to an insurer, the test result would be ignored by insurance companies and your application would be assessed as if this had not been disclosed. The insurer will not use it to refuse you insurance, charge you a higher premium, or impose conditions on your insurance.