What can you say about the term algae? A. Algae represent a group of closely related organisms that share a common ancestor.
B. Algae is a meaningful term for taxonomists.
C. Algae contribute less oxygen to the atmosphere than the rainforest does.
D. Algae is a general term for several aquatic organisms that are photosynthetic.

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.