In 1952, who discovered the spiraling shape of DNA? a. Rosalind Franklin
b. James Watson
c. Francis Crick
d. Gregor Mendel

Which element provides strength to the exoskeleton of clams and oysters

Approximately what portion of the foods that we eat have been genetically modified in some way? a. fewer than 10% b. about 50% c. nearly 100%

Which of the following will a bacterium produce when a human gene is added to its genome? question 4 options: human carbohydrates a protein made up of both human and bacterial properties the human protein coded for by the human gene human plasmids that can be isolated from the bacterium