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Science 14 August 1981:
Vol. 213. no. 4509, pp. 775 - 777
DOI: 10.1126/science.7196086
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Articles

Science, Vol 213, Issue 4509, 775-777
Copyright © 1981 by American Association for the Advancement of Science

articles

Genetic studies of an acardiac monster: evidence of polar body twinning in man

FR Bieber, WE Nance, CC Morton, JA Brown, FO Redwine, RL Jordan, and T Mohanakumar

Two maternally derived chromosome sets and both maternal histocompatibility antigen haplotypes were identified in the tissues of a malformed triploid acardiac twin that developed within the same chorion as its normal twin. These findings indicate that the twins arose as a result of independent fertilizations, by two different spermatozoa, of a normal haploid ovum and its diploid first-meiotic-division polar body.


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