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Marsupials sure got around.

• Source: USA Today Magazine. Jun92, Vol. 120 Issue 2565, p4. 2p. 1 Black and White Photograph.

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SOME MILESTONES IN THE HISTORY OF X-CHROMOSOME INACTIVATION.

• Authors : Lyon, Mary F.

• Source: Annual Review of Genetics. 1992, Vol. 26, p16-28. 13p. 1 Black and White Photograph.

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Tiny tooth upends Australian history.

• Authors : Monastersky, R.

• Source: Science News. 4/11/92, Vol. 141 Issue 15, p228. 2/3p.

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