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Review
. 1994 Apr;4(2):281-91.
doi: 10.1016/s0959-437x(05)80055-3.

Position-effect variegation and the new biology of heterochromatin

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Review

Position-effect variegation and the new biology of heterochromatin

G H Karpen. Curr Opin Genet Dev. 1994 Apr.

Abstract

The phenomenon of position-effect variegation has long been used as evidence for the importance of chromosome position to gene expression in eukaryotes. Investigations published within the past few years demonstrate that position-effect variegation is caused by multiple mechanisms, and that direct tests of hypotheses are possible with numerous model systems.

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