Examlex
The basin shown in this figure was actively subsiding during the formation of unit:
5' Cap
A modified form of guanine nucleotide added to the 5' end of eukaryotic mRNA, playing a role in mRNA stabilization and initiation of translation.
Poly-A Tail
A sequence of adenine nucleotides added to the 3' end of newly synthesized messenger RNA molecules.
Prokaryotes
Simple, unicellular organisms without a nucleus, including bacteria and archaea, characterized by the absence of membrane-bound organelles.
Eukaryotes
Organisms whose cells contain a nucleus enclosed within membranes, distinguishing them from prokaryotes.
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