[填空题]The study of genetics has given rise to a profitable new industry called biotechnology. As the name __31__ , it combines biology and modern technology through such __32__ as genetic engineering. Some of the new biotech companies, as they are called, __33__ in agriculture and are working enthusiastically to patent (取得专利) seeds that give a high yield (产量), that __34__ disease, drought and frost, and that reduce the need for dangerous chemicals. __35__ such goals could be achieved, it would be most beneficial. But some have raised __36__ about genetically engineered crops. "In nature, genetic diversity (多样性) is created within certain limits," says the book Genetic Engineering, Food and Our Environment. "A rose can be crossed(杂交) with a different kind of rose, but a lose will __37__ cross with a potato ..." Genetic engineering, on the other hand, usually involves taking genes from one species and inserting them into another in an attempt to __38__ a desired
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