第三代俄罗斯试管婴儿保持优生优育的基本原理

作者:蕴可美
2019-11-04 13:52:22

  第三代俄罗斯试管婴儿技术能够实现优生的原理:

  The third generation of Russian test tube baby technology can realize the principle of eugenics.

  由于生殖医学中心会为每两只挑选试管婴儿生孕子女的夫妻,在试管婴儿中培养出来数个试管胚胎,在胚胎移植孕妈以前,依照遗传学基本原理对这种试管胚胎作确诊(此方式通称PGD),从这当中挑选最合乎优生优育标准的那1个胚胎移植孕妈。

  Because the center for reproductive medicine will choose two test tube embryos for every two couples who have babies born to test tube babies, test the tube embryos in vitro before they are transferred to the mother, according to the basic principles of genetics. This method is commonly known as PGD, and choose the 1 most successful embryo transfer mothers.

  这类合乎优生优育标准的试管胚胎是那样被挑选出去的:人们一些遗传疾病如X性连锁加盟病症,是有筛选地在不一样性別的子孙后代手上病发的。以血友病的男士病人为例,通常情况下他的孩子是一切正常的;而闺女或一切正常或带上血友病遗传基因的几率各占一半(血友病基因携带者一般不会发病);血友病患者如是女性,那她的儿子会发病,而她的女儿携带正常或血友病基因的概率各占一半。营养缺乏症、红绿色盲等遗传疾病的优生优育基本原理与血友病同样。要是掌握这类基因遗传特点,就能够对试管婴儿培养的试管胚胎体细胞开展基因检查,挑选无发病遗传基因的胚胎移植孑宫,进而防止遗传疾病孩出世。

  Such test-tube embryos that meet the criteria of eugenics and eugenics are selected as follows: some genetic diseases such as X-linked franchise disorders are screened out to occur in the hands of offspring of different genders. Take a man with hemophilia as an example. Usually all his children are normal, while the probability of a girl or all normal or carrying hemophilia genes is half (the carriers of hemophilia genes usually don't get sick). If a woman is a hemophiliac patient, her son will get sick, and her daughter will carry normal or hemophilia genes in half. The basic principles of eugenics such as nutritional deficiency, red green blindness and other genetic diseases are the same as hemophilia. If we grasp the genetic characteristics of these genes, we can carry out genetic examination on the somatic cells of test-tube embryos cultured by test-tube infants, select embryos without pathogenic genes and transfer them to uterus to prevent the birth of children with genetic diseases.

  人们许多遗传疾病能够应用这类PGD方式防止基因遗传给子孙后代,例如地中海贫血症、先天愚型这些。 俩对夫妻深思熟虑,做出2个不一样的决策:一对同意采用第三代试婴技术选择生女孩;一对心存侥幸,不想采用此技术,还想搏一搏生个男孩,但可以肯定,生下的男孩如前胎男孩一样,仍是血友病患者。

  Many genetic diseases can be used to prevent genes from being passed on to future generations, such as thalassemia and congenital stupidity. Two couples deliberately made two different decisions: one agreed to use the third generation baby testing technology to choose a girl; the other was lucky not to use the technology, but also wanted to fight to have a boy, but it is certain that the boy born is still a hemophiliac like the former.

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