遗传学中致死问题的分析是对基因分离定律知识的综合应用,对学生的能力要求较高。《中学生物教学》第8期上刊登了《质疑一道高频出现的错题》,指出了该刊2010年第3期上刊登的《特殊情况下基因型频率或基因频率的求解》一文中例题3的错误解法和答案,并提出了新的解法和答案。笔者认为此题仍有商酌之处,现提出拙见,望专家和同行斧正。原题老鼠的皮毛黄色(A)对灰色(a)为显性。有一位遗传学家,在 The analysis of lethal problems in genetics is a comprehensive application of the knowledge of law of gene separation, which has a high demand on students’ abilities. The eighth issue of “Biology Teaching for Middle Schools” published “Questioning the Wrong Question Appearing in a High Frequency” and pointed out the examples in the article “Solving genotype frequency or gene frequency in special circumstances” published in the third issue of 2010 3 wrong solutions and answers, and put forward new solutions and answers. I think this question is still discretion, now humble opinion, hope experts and colleagues are positive. The original mouse fur yellow (A) gray (a) dominant. There is a geneticist, at