Watson and Crick developed a model of DNA in which the two strands twist into the shape of a _________________. Naim 21:26 Heredity Meiosis Molecular Genetics Watson and Crick developed a model of DNA in which the two strands twist into the shape of a _________________. a. circle b. helix c. double helix d. double pleated sheet Answer: C Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+