1.   He also had an elevated insulin concentration, suggesting a minor defect in sugar metabolism.

2.   He has found two families of genes that are involved in relaying messages about sugar metabolism to the information center in the nucleus of living cells.

3.   Jacob and Monod pursued the problem, studying mutations in bacteria that altered their sugar metabolism.

4.   Some evidence suggests these children may be prone to problems with sugar metabolism, raising the risk of diabetes.

5.   Two French scientists, Dr. Francois Jacob and Dr. Jacques Monod, were studying sugar metabolism in bacteria and noticed a curious thing.