All objects anywhere on or near the Earth are A.
spun in a counterclockwise direction by magnetic forces.
B.
pulled toward Earth by the force of gravity.
C.
pushed away from Earth by the force of repulsion.
D.
held in place by several forces pushing and pulling on them.

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.