With the help of her photograph, James Watson and Francis Crick were able to piece together the first accurate model of DNA ... resembles a twisted ladder. Note also that DNA with a "left-handed ...

Beyond the ladder-like structure described above ... Watson and Francis Crick were pursuing a definitive model for the stable structure of DNA inside cell nuclei. Watson and Crick ultimately ...

DNA is fundamental to the biology of all life on Earth, but how many of us actually know what it is or what it's made of?

Semiconservative replication was not the only model of DNA replication proposed during the mid-1950s, however. In fact, two other prominent hypotheses were put also forth: conservative replication ...