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《生物学杂志》1990年第6期刊登了宋继强老师的“遗传学教学中一道容易误解的题”一文,读后颇受启发。此类题目可深化学生对遗传规律知识的理解.同时,也能锻炼学生思维的灵活性和缜密性。但是,文章中有失误之处,在此撰文与宋老师及其同行共同探讨。在生物中,雄果蝇和雌家蚕是完全连锁的,其他生物(包括雌果蝇和雄家蚕)的同源染色体上的连锁基因在形成配子过程中,
Journal of Biology in 1990 the sixth published in the Song Jiqiang teacher “genetics teaching an easy to misunderstand the title,” a text, after reading quite inspired. Such topics can deepen students’ understanding of genetic laws and exercise the flexibility and sophistication of student thinking. However, there are mistakes in the essay, which is discussed in this article with Professor Song and his colleagues. In biology, the male and female silkworms are completely linked, and other genes (including female and male silkworms) homologous chromosome linkage in the formation of gametes,