医生通过检查胎儿的染色体核型来判断是否有遗传疾病。

The doctor examined the fetus' ___karyotype to check for genetic disorders.

医生通过分析胎儿的染色体核型来检测可能的遗传异常。

The doctor examined the fetus's ___karyotype to check for possible genetic abnormalities.