Barr body(redirected from Barr, Murray Liewellyn)
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Barr body[′bär ‚bäd·ē]
(cell and molecular biology)
A condensed, inactivated X chromosome inside the nuclear membrane in interphase somatic cells of women and most female mammals. Also known as sex chromatin.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.