- Few Southeast students face suspension, expulsion for sexual assaults, campus paper finds (4/25/17)6
- Perryville family organizing bone-marrow drive Friday for ailing 6-year-old boy (4/26/17)
- Woman battered after smashing boyfriend's meth pipe against wall, police say (4/25/17)1
- Pilot House goes smoke-free (4/23/17)10
- Temptations bassist dies after Cape Girardeau show (4/26/17)2
- Event includes the first public tour of 200-year-old Elmwood Manor (4/23/17)3
- BBB warns Jackson man's online business might not be legit (4/24/17)
- Cape couple turns their home into cozy, comfortable music venue (4/24/17)
- State Supreme Court rules against congressman's mother in dog-kennel defamation case (4/27/17)1
- Sikeston man charged in shooting death of Cape man (4/23/17)
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.