- 1. X Inactivation
- [A human early embryonic event in which in any given cell one of a female's two X chromosomes becomes inactivated and converted into a Barr body. After inactivation has occurred, all descendants of that cell have the same inactivated X chromosome. Thus, X-inactivation creates cell clones with differing effective gene content. An organism whose cells vary in effective gene content and hence in the expression of a trait, is called a genetic mosaic. ( NCI )] (UMLS (NCI) C0043297) =Genetic Function
| - 4. Xiphen
- [ ] (UMLS (CSP) C0599095) =Organic Chemical; Pharmacologic Substance ;
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- 2. X inherited trait
- [ ] (UMLS (CSP) C0599413) =Organism Attribute ;
| - 5. Xiphisternum
- (UMLS (NCI) C0043356) =Body Part, Organ, or Organ Component ;
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- 3. Xibenolol
- (UMLS (NCI) C0148979) =Organic Chemical; Pharmacologic Substance ;
| - 6. Xipranolol
- (UMLS (NCI) C0601010) =Organic Chemical; Pharmacologic Substance ;
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