The Rocky Mountains began forming in the western United States about 60 million years ago. The Appalachian Mountains and the Rocky Mountains were similar in height when they first formed. Which statements about the Rocky Mountains are true? Select the two correct answers They are younger than the Appalachian Mountains.

They are taller than the Appalachian Mountains.

They are shorter than the Appalachian Mountains.

They are older than the Appalachian Mountains.

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.