遗传规律发现史征——基因分离定律教学中的应用

• 作 者: 魏成章
• 机 构: 甘肃省会宁县第二中学,
• 出 处: 中学生物教学
• 发表日期: 2007年05期
• 关键词: 分离定律 高中生物 教材编排 孟德尔 情感教育 遗传规律 测交实验 基因重组 减数分裂 植物杂交

遗传的基本规律是高中生物教材的重点内容之一,而基因的分离定律又是学习遗传规律的入门课。教材对这部分内容的编写简洁缜密,不仅贯穿着严谨的知识体系,而且蕴含着深刻的科学思想和丰富的研究方法,透射着科学智慧和科学精神的光芒。然而就是这样一节对学生进行知识、能力、情感教育的好教材,却成了学生学习的难点与障碍。究其原因,其一是这节教材编排在“减数分裂”与“遗传的物质基础”之后,

The basic law of inheritance is one of the key contents of high school biology teaching materials, and the law of gene separation is the introductory course of learning genetics. Textbooks on this part of the preparation of concise and meticulous, not only runs through a rigorous system of knowledge, but also contains profound scientific ideas and rich research methods, the transmission of scientific wisdom and scientific spirit of the light. However, it is such a good teaching material for students’ knowledge, ability and emotion education, which has become a difficult and obstacle for students to learn. The reason, one is the textbook arrangement in the “meiosis ” and “genetic material basis ”,