- Two men accused of selling meth to undercover cop (6/22/17)
- Former Cape cop faces stealing-by-deceit charge (6/18/17)3
- Jackson scores high in survey of residents; better streets, Aldi are high priorities (6/20/17)4
- Marble Hill mayor hires city manager without board approval (6/21/17)2
- Police: Man grabbed wheel, tried to kill driver and himself in Jackson crash (6/23/17)
- Cape man faces charges of victim tampering (6/18/17)
- Police: Cape abduction may have ties to Georgia homicide (6/18/17)5
- 3 drown in Southeast Missouri in three days (6/16/17)
- Library provides free lunches this summer (6/19/17)
- Fire destroys two greenhouses at Travelers Gazebo site in Cape (6/22/17)
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.