Which one of the following statements is accurate?
a. agriculture has been challenged by the use of selective breeding.
b. gymnosperms provide humans with the most food.
c. the green revolution was instrumental in the increase of the world's food supply.
d. wheat, corn, soybeans, and cabbage are the main four plants responsible for providing food to people in the world

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.