Networking in plain English. Cisco IP Classless Command. When Cisco routers have to forward packets, they will check their routing table and they use longest prefix matching to find the best match. If you donât have a best match then the router will use a default route (if you have one). Otherwise, the packet will be dropped.
Franklinâs images allowed James Watson and Francis Crick to create their famous two-strand, or double-helix, model. At Kingâs College London, Rosalind Franklin obtained images of DNA using X-ray crystallography, an idea first broached by Maurice Wilkins.
Important contributions and data from Wilkins, Franklin (obtained via Max Perutz) and colleagues in Cambridge enabled Watson and Crick to propose a double-helix model for DNA. The third and longest phase of Wilkins' work on DNA took place from 1953 onwards. Here Wilkins led a major project at King's College, London, to test, verify and make significant corrections to the DNA model proposed by Watson and Crick and to study the structure of RNA.