In recent years a new farming revolution has begun, one that involves the (1) of life at a fundamental level-the gene. The study of genetics has (2) a new industry called biotechnology. As the name suggests, it (3) biology and modern technology through such techniques as genetic engineering. Some of the new biotech companies specialize in agriculture and are working feverishly to (4) seeds that give a high yield, that (5) disease, drought and frost, and that reduce the need for (6) chemicals. If such goals could be achieved, it would be most (7) . But some have raised concerns about genetically engineered crops.
In nature, genetic diversity is created within certain (8) . A rose can be crossed with a different kind of rose, but a rose will never cross with a potato. Genetic engineering (9) usually involves taking genes from one species and inserting them into another (10) to transfer a desired character
A. restrict
B. resist
C. reverse
D. retrieve
In recent years a new farming revolution has begun, one that involves the (1) of life at a fundamental level-the gene. The study of genetics has (2) a new industry called biotechnology. As the name suggests, it (3) biology and modern technology through such techniques as genetic engineering. Some of the new biotech companies specialize in agriculture and are working feverishly to (4) seeds that give a high yield, that (5) disease, drought and frost, and that reduce the need for (6) chemicals. If such goals could be achieved, it would be most (7) . But some have raised concerns about genetically engineered crops.
In nature, genetic diversity is created within certain (8) . A rose can be crossed with a different kind of rose, but a rose will never cross with a potato. Genetic engineering (9) usually involves taking genes from one species and inserting them into another (10) to transfer a desired character
A. after all
B. on the other hand
C. in any case
D. as a result
我来回答:
