Prefer Newsweek on Google to see more of our trusted coverage when you search. It's a crisp fall day in Northville, Mich., a small suburb of Ann Arbor, and Kirk Maxey, a soft-spoken, graying baby ...
The black and orange patches that define the coloring of a calico cat beautifully illustrate the genetic mechanism known as "dosage compensation" through X chromosome inactivation. Shutterstock Image ...
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