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Addictive disorders may stem from malfunctioning reward centers in the
Barr Bodies
Inactivated X chromosomes found in the nuclei of cells in female organisms, visible as a dense mass, and a key component in dosage compensation.
Promoters
DNA sequences located near the beginning of a gene that signal RNA polymerase where to start transcription.
Frameshift Mutation
A genetic mutation caused by insertions or deletions of a number of nucleotides in a DNA sequence that is not divisible by three, altering the reading frame.
Nucleotide Sequence
The order of nucleotides in a segment of DNA or RNA, determining genetic information.
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