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The United States still primarily uses the U.S. customary system of measurement.
Mutagens
Agents, such as chemicals or radiation, that cause mutations or changes in the DNA of organisms.
Transcription Factors
Proteins that regulate the transcription of genes by binding to specific DNA sequences, thus controlling the flow of genetic information from DNA to mRNA.
RNA Polymerase
An enzyme responsible for synthesizing RNA from a DNA template during the process of transcription.
Promoter
A region of DNA that initiates transcription of a particular gene.
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