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选修模块中有关基因工程的内容对学生来说是一个难点,涉及的知识点多,和必修的相关内容联系密切,空间想象难度大,又无法实验演示、验证。在各地高考试卷中每年都会考到相关知识点,而且有逐
Elective modules in the content of genetic engineering for students is a difficult point involving more knowledge and compulsory related content is closely linked to the space imagination is difficult and can not experiment demonstration and verification. Each year in the entrance examination papers will be related to the relevant knowledge points, but also by