Answer:
Frogs have skulls but don't have necks
Coral snakes imitates king snake-mimicry
also body coverings such as fur on a bear
I believe it is gel electrophoresis.
Gel electrophoresis is a techniwue used to separate DNA fragments or other macromolecules such as RNA and proteins based on their size and charge. It can also determine the actual size of a piece of DNA by examining it next to a standard "yardstick" made up of DNA fragments of known sizes.
