4. watson and crick were the first to suggest that dna is
a. a short molecule
c. a protein molecule
b. the shape of a double helix
d. the genetic material
1. la
c henartfone chromosomebrealce of

The shape of a double helix

Explanation:

Watson was a Zoologist. He won the Medicine Nobel Prize in 1962. Crick was a Physicist, Molecular Biologist and Neuro scientist. Both joined to investigate the structure of DNA and came up with the double helix model.

supercell thunderstorms are perhaps the most violent of all thunderstorm types, and are capable of producing damaging winds, large hail, and weak-to-violent tornadoes

helicase, i think thats it