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许多生物学问题中渗透着重要的数学原理,在问题解决过程中体现着非常明确的数学思想。生物学中的许多疑难问题的解决,若运用数学思想,就能化难为易,化繁为简,既能深化对生物知识的理解,又能培养学生的思维能力。1 集合思想集合思想最多运用于遗传学试题解决时的分类处理,如某个体有两种基因型,可以分成两种情况分别处理然后再叠加;再如,两种或多种遗传病同时遗传时,遗传概率的计算。另外,集合思想还可用于表示具有包含关系的不同概念之间的关系。例如,生存斗争、种内斗争、种间斗争;应激性、反射、条件反射、
Many biological problems infiltrate important mathematical principles, and they have very clear mathematical ideas in the process of problem solving. If many difficult problems in biology are solved, if mathematical thinking is used, it will be difficult to make things easier and more complex and simpler. This will not only deepen the understanding of biological knowledge, but also cultivate students’ thinking ability. 1 The idea of collective mindsets can be applied to the classification of genetic questions at most. If a body has two genotypes, it can be divided into two cases to be processed and then superimposed; for example, when two or more genetic diseases are inherited at the same time The calculation of genetic probability. In addition, collection ideas can also be used to represent relationships between different concepts that have inclusion relationships. For example, survival struggle, intra-species struggle, inter-species struggle; stress, reflexes, conditioned reflexes,