这项新技术用于检查极体中的染色体是否异常。
为了检查一个卵细胞的染色体是否异常，医生用激光在卵细胞外膜上切一小口，通过这个小口抽取极体及其所含的染色体。
To check an egg for chromosomal abnormalities, doctors use a laser to make a small incision in the outer membrane, which allows them to extract the polar body and the chromosomes it contains.
石龙芮染色体非整倍性和染色体异常的观察。
The observation on chromosome aneuploid and chromosome abnormity in ranunculus sceleratus l.
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