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双胎的遗传学研究一直是医学研究领域内人们感兴趣的问题之一。其研究成果不仅为产科临床实践提供了科学的指导,同时也为医学遗传学积累了宝贵的资料。事实上,双胎是人类遗传学研究中的一个特殊的对象。遗憾的是,有关双胎遗传学研究的文献并不多见。这一方面是有许多实际的困难妨碍了该领域研究的开展,另一方面也由于存在某些伦理和道德问题。本文将近年一部分文献资料整理于后,分四个方面做一些介绍。一、双胎成因及基因型经典的双胎成因有两种形式,即
Genetics of twins has long been one of the areas of interest in medical research. The research results not only provide scientific guidance for obstetrics clinical practice, but also accumulate valuable information for medical genetics. In fact, twins are a special object in the study of human genetics. Unfortunately, the literature on twin genetic research is rare. There are many practical difficulties on the one hand that hinder the development of research in this area and on the other hand the existence of certain ethical and moral issues. This article will be part of the literature in recent years after finishing in four aspects to do some introduction. First, the twin causes and genotypes There are two forms of classic twins, that is