1.   Despite the similarities between yeast cells and human cells, the viruses would not grow.

2.   Like humans, yeast cells prefer to burn their glucose with oxygen to produce energy.

3.   Pharmaceutical companies are undergoing a revolution as bioengineered yeast cells replace toxic, solvent-intense chemicals to create medicinal drugs.

4.   Lithocholic acid has been shown to produce DNA strand breaks and both chenodeoxycholic acid and lithocholic acid induce mitotic aneuploidy in yeast cells.

5.   Already, Broach has found that a human cancer gene, called ras, is also in yeast cells and makes them lose control of their growth.

6.   And biologists at the Massachusetts Institute of Technology announced last month that they had discovered a basic mechanism that causes yeast cells to age.

7.   And it is also simple to test drugs and interventions first in yeast cells.

8.   But the segments of the genome also exist in physical form, in the bellies of bacterial and yeast cells, which can be manipulated.

9.   But, by using less yeast, you can still achieve a relatively light loaf by letting fewer yeast cells work harder.

10.   For reasons that stumped the scientists, the picorna virus refused to replicate inside yeast cells.