x-chromosome inactivation

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  1. DAT Destroyer

    DAT OAT Biology: Tortoiseshell Cats & X-Chromosome Inactivation | DAT Destroyer

    onsider Hope, a tortoiseshell cat and a great example of genetics in action. Tortoiseshell coat coloration provides an interesting way to review X-chromosome genetics, mosaicism, and chimerism—concepts worth understanding for DAT and OAT Biology. Free DAT & OAT Resources from Dr. Jim Romano...
  2. DAT Destroyer

    DAT DAT OAT Biology: Tortoiseshell Cats, Genetic Mosaics & X-Chromosome Inactivation | DAT Destroyer

    Consider Hope, a tortoiseshell cat and a great example of an important genetics concept. Most normal tortoiseshell cats are genetic mosaics caused by random X-chromosome inactivation, not true chimeras. While chimeras involve two separate fused embryos with two distinct DNA sets, standard...