Definition for Difference between revisions of "Dosage compensation"
From Biology Forums Dictionary
(Created page with "The phenonomen that gene dosage is compensated between males and females. In mammals, the inactivation of one X chromosome in the female reduces the number of expressed copies (d...") |
|||
| Line 1: | Line 1: | ||
| − | The phenonomen that gene dosage is compensated between males and females. In mammals, the inactivation of one X chromosome in the female reduces the number of expressed copies (doses) of X-linked genes from two to one. | + | 1) The phenonomen that gene dosage is compensated between males and females. In mammals, the inactivation of one X chromosome in the female reduces the number of expressed copies (doses) of X-linked genes from two to one. |
| + | |||
| + | 2) Dosage compensation, also known as '''Ohno's Hypothesis''', is a hypothetical genetic regulatory mechanism which operates to equalize the phenotypic expression of characteristics determined by genes on the X chromosome so that they are equally expressed in the human XY male and the XX female. | ||
Latest revision as of 14:20, 28 September 2013
1) The phenonomen that gene dosage is compensated between males and females. In mammals, the inactivation of one X chromosome in the female reduces the number of expressed copies (doses) of X-linked genes from two to one.
2) Dosage compensation, also known as Ohno's Hypothesis, is a hypothetical genetic regulatory mechanism which operates to equalize the phenotypic expression of characteristics determined by genes on the X chromosome so that they are equally expressed in the human XY male and the XX female.