A human ring D chromosome associated with multiple congenital abnormalities.

Abstract

239 sulted in 2 normal living children. The 3rd pregnancy resulted in a spontaneous abortion. Her last pregnancy at the age of 29 years resulted in a child with Down's syndrome. The child had 47 chromosomes with trisomy 21. The patient also has 47 chromosomes with a triple X karyotype. About 200% of her buccal cells contain 2 chromatin bodies. The patient's… (More)

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