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Case Reports
. 1981 Aug 14;213(4509):775-7.
doi: 10.1126/science.7196086.

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

F R Bieber, W E Nance, C C Morton, J A Brown, F O Redwine, R L Jordan, T Mohanakumar
Case Reports

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

F R Bieber et al. Science. .

Abstract

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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