Final answer:
A backwards pointing dependency arrow in Chemistry represents a reaction that goes in the opposite direction under the given conditions.
Step-by-step explanation:
A backwards pointing dependency arrow in Chemistry represents a reaction that goes in the opposite direction under the given conditions. It indicates that the reaction is not easily reversible.
For example, if a reaction is represented by A → B, a backwards pointing arrow would represent the reaction B → A, which is the reverse of the original reaction.