What explains why a single ripe fruit may help ripen an entire crate of unripe fruit? A) The hormone auxin transports easily.
B) The hormone gibberellin is produced on the skin of fruits.
C) The hormones ethylene and auxin counter each other's actions.
D) The hormone ethylene is a gas and disperses easily.

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.