date:Jan 07, 2014
likely because it comes at a cost: these organisms have less ability to respond to further stress they are quite fragile, she said.
The researchers said they had shown for the first time that this response was underactive genetic control and was not caused by passive accumulation of damage to the DNA, as has been widely believed. They said that further research showed that other repair proteins were responsible for inhibiting damage that they failed to repair completely.
The consequence is t