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做好习题,可使学生增强对概念的巩固和加深,也可检查对概念的理解和应用能力,所以做好习题是培养智力的手段之一.生物学是一门注重基本概念的科学,概念清楚了,可以提高理解和分析能力,反过来这种能力的提高又可进一步加深理解原来所学的基本概念,因而两者是相辅相成的.现选择高中生物“遗传与变异”一章中有关遗传知识方面的一道习题及其扩展为例,来说明上述这个问题。原题:小麦高杆易倒伏(D)抗锈病(T)对矮杆抗倒伏(d)易染病(t)为完全显性.今有:
Doing exercises can enable students to strengthen the concept of consolidation and deepening, but also check the concept of understanding and ability to apply, so do a good job training is one of the means to develop intelligence .Biology is a focus on the basic concepts of science, concepts Clear, can improve the ability to understand and analyze, in turn, this ability to improve can further deepen understanding of the original concept of learning, so the two are complementary.Now choose high school biology “heredity and mutation” chapter of the genetic Knowledge of a problem and its expansion as an example to illustrate the above problem. The original title: wheat pole easily lodging (D) anti-rust (T) dwarf bar lodging (d) easily infected (t) is completely dominant.Today: