UCLA scientists discover new way to fix defective gene
...pying. In the mutated genes of A-T patients, PTCs halt the copying of proteins too early, resulting in sh...le to restore A-T cell function, we may be able to halt the spread of the tumor," said Gatti. "By correcting the mutation, the cancer may stop growing or r......eriments suggested that the roots sent a signal to halt leaf growth, Van Norman did what Sieburth calls "a brilliant experiment." She grew mutant seedlings, cut their roots off and placed the shoots on agar, a gelatinous substance containing nutrients. Those mutants produced two fairly normal flat leaves,...