作者: P. H. Jongbloet
DOI: 10.1007/978-94-010-2958-2_3
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摘要: In previous publications (Jongbloet 1968, 1969) we pointed out that the investigator confronted with mentally retarded human progeny should pay strict attention to time and circumstances under which fertilization concerned took place. The possibility overripeness of ovum is cause a number congenital dysplasias, or without chromosomal aberrations, was postulated. Classical theories on heredity cannot explain some important facts such as causes increased frequency aberrations in primiparous women well rising age mother. Also basis discordant occurrence abnormalities one-egg twins not understood. All attempts these by exogenic factors have failed so far.