Answer:
Rosalind's x-ray showed that the ladders of nucleotides were inside a double helix.
Watson and Crick built models with the ladders on the outside.
Answer:
Nuclear energy can be used and controlled and it is more efficient than other forms. I would say B.
Proteins have structural roles throughout the body. Carbohydrates are the major energy source for cells in the body. I am unsure if lipids or nucleic acids apply.
C the trait is passed on genetically to the next generation
