Question

Identify the wrong statement about key:

• A. The keys are based on the contrasting characters generally in a pair called couplet.
• B. Each statement in the key is called a lead.
• C. Keys are generally analytical in nature.
• D. Keys have specimens which are a repository for future use.

Answer 1

The correct option is D Keys have specimens which are a repository for future use.

Key is taxonomical aid used for identification of plants and animals based on the similarities and dissimilarities. The keys are based on the contrasting characters generally in a pair called couplet. It represents the choice made between two opposite options. This results in acceptance of only one and rejection of the other. Each statement in the key is called a lead. Separate taxonomic keys are required for each taxonomic category such as family, genus and species for identification purposes. Keys are generally analytical in nature. Keys do not have a repository of specimens.