embryo
• placentas are 54% heavier at E18.5 than in wild-type when the mutated allele is inherited maternally
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growth/size/body
• heterozygotes inheriting the mutant allele from the mother exhibit an increase in body mass (28% difference from wild-type)
(J:25091)
• heavier than controls at E18.5 when the mutated allele is inherited maternally
(J:75054)
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cellular
• defects are seen in heterozygotes that receive the mutant allele from the mother while those that receive the mutant allele from the father are normal
(J:25091)
• when maternally inherited, the maternal H19 gene is repressed and the normally imprinted Igf2 and Ins-2 genes are expressed
(J:25091)
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