Passage Summary: When scientists use gene splicing on farm animals, they don't fully understand the resulting genetic mix, which can accidentally include hidden poisons that are hard to detect.

Reasoning: Gene splicing is an imprecise process that can result in animals with unknown genetic structures and hidden, dangerous traits like toxins.

Analysis: The stimulus emphasizes the unpredictability and potential danger inherent in gene splicing technology. Because the genetic makeup is only 'partially understood' and undesirable traits are 'not easily discoverable,' the facts point toward a significant risk of unintended consequences. When looking for the most strongly supported statement, prioritize an answer that reflects this uncertainty or the possibility of undetected hazards in modified organisms. Avoid any answer choices that make overly broad claims about the benefits of gene splicing or suggest that these toxins are guaranteed to be present.