Examlex
The Essenes awaited two different messiahs.
Lac Operon
A group of genes in bacteria controlled by a single promoter, involved in lactose metabolism and regulation of gene expression.
Master Genes
Master genes are genes that control the activity of other genes, playing a critical role in regulating development and differentiation within living organisms.
Repressor
Transcription factor that slows or stops transcription.
X Chromosome Inactivation
Mechanism of dosage compensation: developmental shutdown of one of the two X chromosomes in the cells of female mammals. See also Barr body.
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