- Fatal-shooting victim ID'd; uncle said he tried to break up fight (9/29/16)29
- Driver charged with manslaughter in crash that killed 2 (9/27/16)
- Perryville man arrested for alleged patronizing prostitution, harassment (9/23/16)6
- Perryville High principal on leave; no reason given (9/28/16)9
- Video and evidence largely confirm trooper's claims in April traffic stop shooting (9/23/16)9
- Cape man may lose eye after shovel beating, police say (9/25/16)2
- Animal-rescue group receives grant from rock star for spay, neuter assistance (9/28/16)1
- Monia pleads guilty to 9 counts of financial exploitation of elderly; dealings with murderer Joseph clarified (9/28/16)11
- Woman accused of pushing Wal-Mart employee after theft (9/27/16)
- Planning, design puts renovations of H-H building into hotel on hold (9/26/16)6
Single gene may stymie many cloning efforts
Scientists say they've identified a single gene that could explain most failures to clone mammals.
Cloning involves taking DNA from a cell of an adult animal and putting it into an unfertilized egg. So the DNA must switch gears, telling the egg how to divide and grow into a new individual. The switchover requires shutting some genes off and turning others on.
The problem with the gene, called "Oct4," doesn't explain every failure, but it could account for about 90 percent, said researcher Hans Schoeler of the University of Pennsylvania's veterinary school in Kennet Square, Pa.