- Neelys Landing man shot, killed by highway patrol trooper after traffic stop (05/01/16)43
- Cape student sues, accuses school officials of slamming her to ground multiple times (04/28/16)49
- Missouri House votes to allow concealed weapons without permits (04/28/16)8
- River Ridge Winery changes hands (05/02/16)
- Police report filed, but no charges in incident at Cape Central (04/29/16)40
- 2016 All-Missourian Boys Basketball (04/29/16)
- Statement: Man says cops’ good work drove him to grow his own marijuana (05/01/16)1
- Bob Evans restaurant in Cape Girardeau among chain's 21 closings (04/26/16)9
- Senator introduces bill for I-57 that would connect Sikeston with Little Rock (04/28/16)4
- Hopper Road to close for months during construction of Veterans Drive (04/27/16)9
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.