11.   Patients with cystic fibrosis inherit a faulty gene that is used to shuttle water and salt back and forth across cell membranes.

12.   Researchers at the Baylor College of Medicine say they have identified the faulty gene responsible for a silent but deadly heart condition.

13.   The faulty gene either fails to make its protein or makes a different one, causing a characteristic change in the function of the affected cells.

14.   The technique has several advantages over replacing faulty genes.

15.   This involves adding extra DNA to cells to compensate for a faulty gene.

16.   Women from high-risk families with mothers, sisters and aunts affected may want to know if they inherited a faulty gene.

17.   Primary immunodeficiency means children are born with faulty immune genes, putting them at risk for unusually repeated infections, sometimes death.

18.   Patrick and Sharon Terry gave their two children a faulty gene that could make them go blind.

19.   Children with the diseases are born with faulty immune genes, putting them at risk for unusually repeated infections, sometimes death.

20.   He recalled being part of a team that discovered the faulty gene that causes the disease.