以往的研究者已经指出过，大龄孕妇生育的孩子极易患出生缺陷、出生体重低、类似先天痴呆的某些染色体疾病。
Prior studies have indicated that babies born to older women have higher risks of birth defects, low birth weight and certain chromosome problems, such as Down syndrome.
生育专科经过了长期的探索，找到一种途径来检测受精卵或者胚胎以找出主要的异常染色体。
Fertility clinics have long sought a way to check eggs or embryos for major chromosome abnormalities.
目的探讨染色体的异常对男性生育能力的影响。
Objective To investigate the influence of chromosome abnormality on male reproductive ability.
应用推荐