Examlex
A substance that slows down the activity of the central nervous system is called a ______________.
Protein Structure
The specific three-dimensional arrangement of amino acids in a protein, determining its function and activity, includes primary, secondary, tertiary, and quaternary structures.
Exons
Segments of a DNA or RNA molecule containing information coding for a protein or peptide sequence.
Introns
Noncoding sections of an RNA transcript, or the DNA encoding it, that are removed before the RNA molecule is translated into a protein.
Promoter
In an operon, a sequence of DNA where RNA polymerase binds prior to transcription.
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