What was the first genetically engineered product approved for ...

[tfester]

What was the first genetically engineered product approved for use in food?
 
  What will be an ideal response?

Question 2

What action does yeast perform in bread making?
 
  What will be an ideal response?

[otokexnaru]

Answer to Question 1

Rennin became the first genetically engineered product approved for use in food.

Answer to Question 2

Yeast performs its leavening function by fermenting carbohydrates such as the sugars, glucose, fructose, maltose, and sucrose. The principal products of fermentation are carbon dioxide, which produces the leavening effect, and ethanol. Yeast also produces many other chemical substances that flavor the baked product and change the dough's physical properties.

[tfester]

Both answers were spot on, thank you once again

[otokexnaru]

Great! Please up vote