From cucumbers and carrots to white rice and wheat, we humans have altered the genes of almost every food we eat. For almost 10,000 years we've been engineering plants by keeping the seeds from the best crops and planting those the next season. Following this practice year after year has resulted ...

Genetic Engineering Two years ago Scottish scientists announced that they had successfully cloned a sheep. They named it dolly and it was an exact copy of the original sheep. Is cloning morally right? Is it ethical? Some people think that it is wrong and that it shouldn't be pr...