American biochemists Sharp, the British biochemist Gene Roberts found fault.

美国生物化学家夏普、英国生物化学家罗伯茨发现断裂基因。

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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