Word: geneses
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If the results reported in J.A.M.A. are confirmed, there are a few hints from other research that might explain the sex difference. Women's bodies appear to have greater difficulty repairing the damage to their genes caused by smoking, but there is also some evidence that estrogen, which is found...
Most of the errors in reprogramming, scientists say, can be traced to a process known as DNA methylation. During normal development, molecules called methyl groups attach themselves to DNA in precisely timed patterns that regulate which genes are expressed at which times. During cloning, however, those patterns are not always...
For a long time, researchers have tried to nail down just what shapes us--or what, at least, shapes us most. And over the years, they've had a lot of eureka moments. First it was our parents, particularly our mothers. Then it was our genes. Next it was our...
The family began as--and remains--a survival unit, with parents agreeing to care for the kids, the kids agreeing to carry on the genes and all of them doing what they can to make sure no one gets eaten by wolves. But the resources that make this possible are...
If siblings can indeed be as powerful an influence on one another as all the research suggests, are all siblings created at least potentially equal? What about half-sibs and stepsibs? Do they reap--and confer--the same benefits? Research findings are a bit scattered on this, if only because...