X-chromosome inactivation
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X chromosome inactivation centre — Site on X chromosome responsible for the inactivation of that X chromosome in female mammals (see Lyon hypothesis). Gene responsible, Xist, maps to this region and seems to code for a nuclear RNA that co localizes with the inactivated X… … Dictionary of molecular biology
Chromosome X Humain — Portail de la biologie Le chromosome X … Wikipédia en Français
Chromosome X humain — Portail de la biologie Le chromosome X … Wikipédia en Français
Chromosome x humain — Portail de la biologie Le chromosome X … Wikipédia en Français
Inactivation du chromosome X — L inactivation du chromosome X est un processus à partir duquel un des deux chromosomes X de la femelle mammifère est inactivé. Exemple : les chattes à 3 couleurs, dites Écaille de tortue. L inactivation est réalisée par la non transcription … Wikipédia en Français
Chromosome X — Le chromosome X humain Le chromosome X est l un des deux chromosomes sexuels de l être humain et de certains animaux (l autre chromosome sexuel est le chromosome Y). Il fait partie du système XY de détermination sexuelle. Sommaire … Wikipédia en Français
Chromosome — For a non technical introduction to the topic, see Introduction to genetics. Diagram of a replicated and condensed metaphase eukaryotic chromosome. (1) Chromatid – one of the two identical parts of the chromosome after S phase. (2)… … Wikipedia
X-inactivation — The Barr body is indicated by the arrow, it identifies the inactive X (Xi).] macroH2A1 staining. Arrow points to sex chromatin in DAPI stained cell nucleus, and to the corresponding sex chromatin site in the histone macroH2A1 staining.] X… … Wikipedia
X chromosome — Scheme of the X chromatid Nucleus of a female amniotic fluid cell. Top: Both X chro … Wikipedia
Control of chromosome duplication — A key feature of the DNA replication mechanism in eukaryotes is that it is designed to replicate relatively large genomes rapidly and with high fidelity. Replication is initiated at multiple origins of replication on multiple chromosomes… … Wikipedia
