Impacts of Trait Technology Practice Test

A plant breeder used selective breeding to develop wheat that produces more grain per plant. In test plots, yield increased by 18%. But the new variety had shallower roots, and during a drought year its yield dropped 25% more than the older variety. Which statement about impacts is supported by the evidence and shows a tradeoff?

A lab used cloning to produce animals with the same traits as a prize-winning sheep (high-quality wool). The cloned sheep produced wool similar in quality to the original. However, the cloning success rate was low (only 8% of embryos became healthy lambs), and some clones had health problems early in life. What evidence shows a tradeoff in the impacts of this technology?