- Sikeston singer moves on with 'The Voice' (10/16/17)
- Past Rowdy the Redhawk mascot's identity revealed (10/15/17)
- College algebra to be removed from Southeast required curriculum (10/10/17)1
- Cancer will 'change your life, but it doesn't have to rule it' (10/8/17)
- Police chief, council: Cape Girardeau faces growing gun violence (10/17/17)4
- Developer asks court to OK tax district board for improvements near Hobby Lobby (10/17/17)4
- Bills addressing equal child custody to be filed, legislators say (10/13/17)
- Cape Christian School burglarized (10/18/17)
- The last person to be laid to rest at Old Lorimier Cemetery: Mary Russell Fox (10/17/17)2
- Load shift kills Jackson trucker (10/17/17)
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.