A student has several star maps for different times of the year and different times of the day. Which of these statements is correct for all the star maps? The position of the North Star is the same. The position of the North Star changes with the seasons. The North Star shifts more towards south at sunset. The North Star shifts more towards north at midnight.

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.