1.   The cloning of the CF gene enables the association of phenotype with a specific mutation.

2.   Finding a specific mutation that is unusually common in one ethnic group does provide a tool for studying the genetic origins of cancer.

3.   It would be a basic scientist, for example, who would pinpoint the gene that causes a specific mutation in yeast.

4.   That was a clue that perhaps this specific mutation was frequent in the relatively isolated, inbred population of Ashkenazi Jews.

5.   The company offers a service that matches the genetic code of a virus sample against a gene bank and identifies specific mutations known to affect HIV treatment.

6.   The disease involves a specific genetic mutation that can often be detected through bone marrow tests.