Examlex
Equatorial upwelling occurs in westward-flowing equatorial surface currents.
Constitutive Genes
Genes that are continuously expressed under normal cellular conditions, essential for the maintenance of basic cellular function.
Survival
The act of continuing to live or exist, typically in spite of an accident, ordeal, or difficult circumstances.
Lac Operon
A genetic regulatory system found in bacteria and some viruses, controlling the metabolism of lactose.
Repressor Protein
A protein that binds to specific DNA sequences, preventing the transcription of certain genes.
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