Scientist James Watson, who shared a Nobel prize for helping discover the double-helix shape of the DNA molecule, has died. He was 97. His death was announced by his former research lab. Watson also helped guide efforts to map the human genome. But he was widely condemned for racist remarks later on and left his job as chancellor of the prestigious Cold Spring Harbor Laboratory in New York. Watson shared a 1962 Nobel Prize with collaborator Francis Crick and scientist Maurice Wilkins for discovering in 1953 that DNA was shaped like a long, gently twisting ladder. Knowing the structure of DNA was key to figuring out how the genetic material works.
By DANIEL NIEMANN, MARIA CHENG and MIKE CORDER Associated Press
Two scientists have won the Nobel Prize in physiology or medicine for their discovery of microRNA, tiny bits of genetic material that serve as on and off switches inside cells that help control what the cells do and when they do it. If scientists can better understand how they work and how to manipulate them, it could lead to powerful treatments for diseases like cancer. A panel that awarded the prize in Stockholm said Monday the work by Americans Victor Ambros and Gary Ruvkun is "proving to be fundamentally important for how organisms develop and function." Their discovery ultimately "revealed a new dimension to gene regulation, essential for all complex life forms," the panel said.
By REBECCA BOONE and GENE JOHNSON Associated Press
Authorities say the DNA of the man accused of killing four University of Idaho students was found on a knife sheath recovered at the crime scene. Court documents unsealed Thursday say cellphone data show that 28-year-old Bryan Kohberger had visited the area near the home where the Nov. 13 attack occurred about a dozen times since June. A woman who lived at the victims' home and who wasn't harmed awoke early that morning and heard crying before seeing a masked man in black clothing walk past her and toward a sliding glass door, the court documents say. Kohberger is charged with four counts of first-degree murder and felony burglary.
