An agent, such as yeast, that causes batter or dough to rise, especially by fermentation.

酵素一种可使面粉糊或面团发大的制剂，尤指通过发酵，如酵母。

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Research is continuing into using other micro-organisms, such as yeast, which might be engineered to create similar metabolic pathways.

使用其它微生物的研究还在进行中，例如酵母菌可能也能通过改良基因获得类似的代谢途径。

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These vectors can have different features (such as the size of DNA-insert they can accommodate) and include plasmids, cosmids, and yeast artificial chromosomes (YACs).

这些载体具有不同的特征，包括质粒、粘粒和酵母人工染色体。

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Certainly, these genes are involved in life extension in simple species such as threadworms and yeast.

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Chinese cooks add red yeast rice to some dishes, such as Peking Duck and spareribs, to achieve a red color.

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In some cases, certain foods, such as cow's milk, eggs, fish, shellfish, yeast products, nuts, and some food colourings and preservatives, can make symptoms worse.

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