Later, the doctor discovered that a small amount of dried brewer's yeast each day could prevent pellagra.

VOA: special.2009.01.27

Took it out of the virus completely, cloned it into a plasmid, that plasmid was expressed in a foreign host, in this case it was expressed in yeast cells.

将基因从病毒中完全提取出来,并克隆制成质粒,该质粒在外来宿主中表达,此例中质粒在酵母细胞中表达

耶鲁公开课 - 生物医学工程探索课程节选

Yeast cells were grown in large numbers with this plasmid inside, they expressed the plasmid and so you made Hepatitis B surface antigen not in people but in cell culture where it was not normally formed.

体内携带这种质粒的酵母细胞大量增殖,它们表达质粒,因此,乙型肝炎表面抗原不是在人体内,而是在细胞培养环境下,以非正常方式形成的

耶鲁公开课 - 生物医学工程探索课程节选

Later,the doctor discovered that a small amount of dried brewer's yeast each day could prevent pellagra.

VOA: special.2010.05.18

Since then,similar studies have shown life-extending effects of reduced diets on rodents, yeast and worms.

VOA: special.2009.09.01

The researchers added the changed DNA to yeast -- a simple,single-cell organism.

VOA: special.2010.07.20

The yeast machinery put them together at this place of overlap.

VOA: special.2010.07.20

"It's so simple. With a two-liter bottle you add sugar, you add extract, you add a small amount of yeast and water, cap it up and in two days they've got root beer.

VOA: special.2011.08.01

"We are here today to announce the first synthetic cell -- a cell made by starting with the digital code in the computer, building the chromosome from four bottles of chemicals, assembling that chromosome in yeast, transplanting it into a recipient bacterial cell and transforming that cell into a new bacterial species."

VOA: special.2010.07.20

When the bread didn't rise, I started wondering what yeast was so I went to visit a yeast factory."

VOA: standard.2010.07.16

The same four essential ingredients - flour,water,yeast and salt - can yield 10,000 different combinations.

VOA: standard.2010.07.16