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dosage compensation[′dō·sij ‚käm·pən‚sā·shən]
A mechanism that equalizes the expression in males and females of genes located on the X chromosome, despite their presence in two doses in the homogametic sex and a single dose in the heterogametic sex.
A mechanism that equalizes the expression of X-linked and autosomal genes by doubling the expression level of X-linked genes in male Drosophila and in both male and female mammals with their single active X.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.