Lyonization

Lyonization definition - medical

Ly·on·i·za·tion (līˌə-nĭ-zāˈshən)

noun
The phenomenon in which heterozygous females do not phenotypically express their X-linked recessive genotype or do so only randomly. Also called X-inactivation.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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