1.   This accomplishes in one generation what, in the past, took plant and animal breeders many generations to achieve by conventional selective breeding methods.

2.   They also provide much greater uniformity than is possible with strains derived from conventional plant breeding methods.

3.   Fifteen years ago, Wildt hoped he could quickly adapt the breeding methods that had become routine in cattle to cheetahs.

4.   New breeding methods designed to increase the proportion of meat to bone and fat have improved the quality of geese on the market.

5.   The genetically engineered rice will be crossed with local varieties using traditional breeding methods, and health and safety tests will be conducted.

6.   But they are likely to mate clones with uncloned animals because cloning is more expensive and less reliable than other breeding methods.

7.   By using conventional breeding methods, crop developers avoid the hassle of getting government approval to test and commercialize genetically engineered crops.

8.   Genetic engineering involves transferring traits from one organism to another by splicing genes, while conventional breeding methods include cross pollinating plants and inducing genetic mutations.

9.   Moreover, squash have also been made virus-resistant through conventional breeding methods that are not subject to the review process required of biotech varieties, Giddings said.

a. + method >>共 1343
new 7.64%
traditional 4.32%
different 3.23%
teaching 2.60%
alternative 1.65%
accounting 1.57%
same 1.55%
best 1.54%
conventional 1.43%
cooking 1.35%
breeding 0.17%
breeding + n. >>共 226
program 10.13%
season 7.13%
stock 5.29%
area 3.45%
pair 2.99%
farm 2.88%
technique 2.42%
colony 2.30%
programme 2.19%
population 1.73%
method 1.27%
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