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本文介绍关于黑腹果蝇杂交实验的一次教学改革尝试。讨论遗传学实验教学中,如何由常规的“验证性”教学改变为启发式的“发现式”教学,在本实验教学中,学生处于主导地位,自己选择实验组合,提出实验设计方案,独立完成实验内容;教师只是协助学生完成其实验内容。这种教学方法,充分发挥学生学习的主动性,培养学生独立思考和实际操作能力,激发学生的学习兴趣。
Abstract:The paper is concerned about a teaching and learning reform of hybridization experiment of Drosophila melanogaster.In the teaching of genetic experiment,we have adopted a new teaching and learning method which was a discovering way instead of tranditional method .In this way,students themselves selected the combination subject,put forward and carried out the whole experiment scheme.By the reform,we couldd find out that it was helpful not only to improve students' thinking and operating abilities but also to encourage their interests in genetics. 相似文献
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笔者在进行果蝇唾腺染色体实验培养三龄幼虫时,根据多年的经验发现了2项很实用的小技巧.现介绍如下:
1 选择果蝇的小技巧
果蝇的选择,以野生为宜,一般不要选用长期在实验室培养的果蝇.野生果蝇通常出现在有不新鲜或腐烂的水果周围,所以水果摊或有坏烂水果的垃圾堆是捕获果蝇的首选地点,当然也可以用切成碎片的果肉招引果蝇. 相似文献
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