Homologue Pairing in Flies and Mammals: Gene Regulation When Two Are Involved

<table>Hypothetical model for pairing-dependent buffering of gene dosage in flies. (a) The unpaired X chromosome of males escapes repression. (b) Paired female X chromosomes are subject to repression. (c) Paired regions of an autosome are repressed, but an unpaired region created by deficiency escapes repression.</table>

Genetics Research International

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Figure 2

Figure 2: Homologue Pairing in Flies and Mammals: Gene Regulation When Two Are Involved 