Examlex
The copying of the DNA genetic code by mRNA is called ____________________.
Exaptation
An exaptation is a trait that initially carries out one function and is later co-opted for a new function. The original function may or may not be retained.
Tiktaalik
An extinct genus of fish-like tetrapods that represents an early stage of the transition from fish to tetrapods.
Eusthenopteron
An extinct prehistoric fish known for its significance in the study of vertebrate evolution, especially the transition from water to land animals.
Wrist Bones
A collection of eight small bones called carpal bones that support the structure and motion of the wrist.
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