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A-B-C-D-E-F-G-H-I-J-K-L-M-N-O-P-Q-R-S-T-U-V-W-X-Y-Z
- X chromosome
- Discussion
- X inactivation
- [Described] [role of XIST locus]
- X linkage
- Inheritance of genes on the X chromosome [Example]
- Xenopus laevis
- [diploid number] [embryonic development]
- Xenotransplantation
- Graft of an organ or tissue between members of different species. [More]
- Xylem
- Vascular tissue of plants that conducts water and dissolved materials from the roots upward and often provides mechanical support to the plant. Wood is made of xylem. [More]