lyonization /ly·on·iza·tion/ (li″on-ĭ-za´shun) the process by which or the condition in which all X chromosomes of the cells in excess of one are inactivated on a random basis.
lyonization
lyonization
Ly·on·i·za·tion (l   -n -z  shn)n. The phenomenon in which heterozygous females do not phenotypically express their X-linked recessive genotype or do so only randomly. Also called X-inactivation. |
lyonization
[lī′ənīzā′shən]
Etymology: Mary L. Lyon; Gk, izein, to cause
the process of random inactivation of one of the X chromosomes in the cells of females to compensate for the presence of the double X gene dose. See also Lyon hypothesis.
lyonization
the process by which or the condition in which all X chromosomes of the cells in excess of one are inactivated on a random basis.
lyonization
Genetics A normal genetic event that consists of inactivation of all X chromosomes–portions of the 'inactivated' chromosome may remain functional if in excess of one
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