Word: dna
(lookup in dictionary)
(lookup stats)
Dates: during 1990-1999
Sort By: most recent first
(reverse)
...practical and philosophical issues opened by the double helix continue to unfold, policy, philosophy and even religion will evolve in response. But one truth seems likely to endure, universal and immutable. It emerges with equal clarity whether you examine the DNA molecule or the way it was revealed. The secret of life is complementarity...
...life began is a grander question that will occupy most of the next century. The first task is to reconstruct the history of evolution over the past 4 billion years. Modern gene technology can use the DNA in every living thing as a vast repository of historical information. Even dna will not point all the way back to the beginning of life, but it will provide clues to the self-replicating entities first assembled from simple chemicals on the primeval earth. The century ahead will see the first laboratory proof that self-replicating systems can form from ordinary chemicals. Determining...
...British chemist Rosalind Franklin's X-ray photographs of DNA show that the molecule has a helical structure...
...James Watson and Francis Crick announce that they have deciphered the structure of DNA...
...Alec Jeffreys and colleagues at the University of Leicester, England, develop "genetic fingerprinting," which uses unique sequences of DNA to identify individuals...