Examlex
Who was the first person to name what he thought were single cells?
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.
Role
A function or part played by an individual or thing in a particular situation, system, or environment.
Promoter
A specific DNA sequence that binds RNA polymerase and initiates transcription of downstream genes.
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