This may occur by increasing the amount of cancer-fighting substances, known as photochemicals. Examples of this are cabbage with more sulforaphane, which prevents tumor growth, or carrots with more beta-carotene found in them. The last exhibit in this room represents the role of microorganisms in biotechnology. It is a finely set table with a bottle of wine, a basket of breads, and wedges of cheese. By genetically engineering yeast and other microorganisms, the texture and taste of these foods may be improved.
Visitors then enter the third room in the exhibit.
This portion concentrates on altering the traits of animals through biotechnology. The setting is a barn with hay strewn on the floor for an authentic touch. In the first stall there are models of cows. Here, the genetic engineering of cows for their milk is discussed. Bovine somatotropin is a growth hormone that is produced in the pituitary glands of cows.