Question

Scientists have genetically engineered potato plants to produce potatoes that contain edible vaccines. Which is a disadvantage of the genetically engineered potatoes?
They are easier to transport and store than injectable vaccines (shots).
They make it easier to administer edible vaccines.
They are more expensive than potatoes without the vaccine.
They have nutritional value while potatoes without the vaccine do not

Answer 1

They are more expensive than potatoes without the vaccine.

(Edible-vaccine crops can have higher development, regulatory and production costs and other drawbacks such as public acceptance, allergen concerns and environmental risks.)