在《基因的显性与隐性》教学中,孟德尔遗传规律是本节教学的重点,但学生理解有一定的困难,所以也是教学难点。在教学中,我尝试引导学生,从以下几个方面理解:一、正确区分显性性状和隐性性状;二、正确画遗传图解;三、正确理解和计算遗传学的概率;四、正确运用乘法定律。通过正确的理解,才能更好运用孟德尔遗传规律来解决生活中的实际问题。 In the “dominant and recessive gene” teaching, Mendelian law of inheritance is the focus of this section of teaching, but students understand that there are certain difficulties, it is also a teaching difficulty. In teaching, I try to guide students to understand from the following aspects: First, the correct distinction between dominant traits and recessive traits; Second, the correct drawing of genetic plots; Third, to correctly understand and calculate the probability of genetics; Fourth, the proper use of Multiplication law. With correct understanding, we can make better use of Mendel 's laws of inheritance to solve practical problems in life.