MATERNAL AGE, DIZYGOTIC TWINNING RATES AND AGE AT MENOPAUSE

被引:4
作者
JAMES, WH
机构
[1] Department of Human Genetics and Biometry, University College London
关键词
D O I
10.1080/03014467900003871
中图分类号
Q98 [人类学];
学科分类号
030303 ;
摘要
The dizygotic (DZ) twinning rate declines after about maternal age 38 in Caucasian populations. Bulmer (1970) offered the explanation that waning ovarian function causes a decline in rates of double ovulation in originally twin-prone women. The present note suggests that some small part of the decline is caused by the earlier cessation of ovulation altogether in these women (presumably also as a result of waning ovarian function). © 1979 Informa UK Ltd All rights reserved: reproduction in whole or part not permitted.
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收藏
页码:481 / 483
页数:3
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