Question

1. which scientist or team of scientists was able to work out the molecular structure of dna as a double helix?

hershey and chase
avery
griffith
watson and crick

Explanation:

Watson and Crick are credited with discovering the double - helix structure of DNA in 1953 using data from Rosalind Franklin and others. Hershey and Chase demonstrated DNA as the genetic material. Avery showed that DNA is the transforming principle. Griffith's experiment demonstrated bacterial transformation.

Answer:

Watson and Crick