Plant scientists have used genetic engineering on seeds to produce crop plants that are highly resistant to insect damage. Unfortunately, the plants require more fertilizer and water togrow well than normal ones do, and the seeds themselves are quite expensive, and for most farmers the savings on...
Plant scientists have used genetic engineering on seeds to produce crop plants that are highly resistant to insect damage.Unfortunately, the seeds themselves are quite expensive, and the plants require more fertilizer and water to grow well than normal ones.Thus, for most farmers the savings on pe...
我的是：<Plant scientists have used genetic engineering on seeds to produce crop plants that are highly resistant to insect damage.> Unfortunately, xxx. Accordingly, <for most farmers the savings on pesticides would not compensate for the higher seed costs and the cost of ...
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Plant scientists have used...是之前的做法,第二句话Unfortunately反驳了之前的做法,第三句话accordingly得出一个相应的结论,第四句话however又反驳了第三句话,最终结论为第四句话。问第一句和第三句的作用。 A.错,第二个boldface不是主要结论。 B.错,第二个boldface并不是contribute to 最终结果的。 C.对,第...
Plant scientists have used genetic engineering on seeds to producecrop plants that are highly resistant to insect damage. Unfortunately, the plants require more fertilizer and water to grow well than normal ones do, and the seeds themselves are quite expensive, and for most farmers the savings on...
In the new progress of plant genetic modification, scientists have developed a method to increase the yield of a certain crop by modifying its genetic structure. Which factor is mainly affected in this genetic modification? A. The number of chloroplasts in plant cells, which directly affects the...
In a plant genetic engineering study, scientists want to transfer a gene from one plant species to another to enhance the nutritional value of the target plant. Which of the following methods is commonly used for gene transfer? A. Agrobacterium - mediated transformation B. Electroporation C. Micr...
题目 Scientists have shown how plants can protect themselves against genetic(基因的) damage caused by environmental stresses.The growing tips of plant roots and shoots have an in-built mechanism (机制) that spells cell death if DNA damage is detected,avoiding passing on faulty DNA. ...
Scientists use ___ to test whether their genetic modification of a plant is successful.相关知识点: 试题来源: 解析 正确答案:marker genes 解析:根据关键词test...genetic modification查读小标题Disease下面第四句Marker genes are used by scientists to determine whether their genetic modification of a plan...