A variety of approaches have been used to address this issue, the most common of which is the study of tumors in women, who are heterozygous for X-linked marker enzymes.

一系列的方法已被用来探讨这个问题，其中一个最常用的方法是研究女性肿瘤，她们是X连锁标记酶杂合子。

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He has linked the marker with the reward.

它把标记和奖励联系起来。

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The goal of this study is to find the molecular marker linked to white-petal gene and use the marker in supplementary breeding.

找到与白花性状基因连锁的分子标记，用于育种工作的辅助选择，是本研究的目的。

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Tests of female spring chinook from Dworshak National Fish Hatchery along Idaho's Clearwater River at Ahsahka likewise showed no evidence of the male-linked genetic marker.

CNN: Something's fishy with chinook salmon

Dr Lagae and Dr Freitas have used similar techniques to find marker molecules for breast cancer and genes linked to cystic fibrosis.

ECONOMIST: Labs on a chip

Big effects can translate into big tests: If a specific number variant is linked to sufficiently high possibility of autism, that variant could serve as an identifiable marker for the condition.

FORBES: Autism And Genetics: It's Complicated