The researchers went on to study what is responsible for the difference in expression of the glucocorticoid-receptor gene.

研究者们进一步探究是什么造成了糖皮质激素受体基因表达的差异。

youdao

Some researchers thought the survival difference was due to genetics, but they could never find the gene responsible.

一些研究人员认为这两类小鼠之间的差异是源于基因的不同，但是他们未能发现基因方面存在的问题。

youdao

Importantly, there was no difference in the presence of known disease-associated gene variants between the longevity and control groups.

关键是，在已知变异基因方面，长寿与控制变量组之间并无差异。

youdao

These so-called quantitative traits are under the control of a number of different genes acting in concert as opposed to qualitative traits such as human eye colour, where a difference in a single gene produces a single, sharp distinction.

ECONOMIST: A genetic game of chicken

If the difference in weight matches one particular amino acid, gene-sequencing can be bypassed altogether.

ECONOMIST: Viruses: Hunt the mutant | The

Study of these fragments showed that they sometimes differed from one another in three places along the length of the gene although this did not prove that any or all of those variations caused a difference in coat colour.

ECONOMIST: The genetics of mammoth coat colour