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问题 填空题 案例分析题

香味性状是优质水稻品种的重要特性之一。

香稻品种甲的香味性状受隐性基因[a]控制，其香味性状的表现是因为（），导致香味物质积累。

答案

参考答案：a基因纯合，参与香味物质代谢的某种酶缺失

计算题

现用9.8gCu(OH)2和100g稀硫酸进行如下实验，将Cu(OH)2加入到100g足量的稀硫酸中，反应结束后，测得溶液pH<7，再加滴16%的氢氧化钠溶液，当加入160g时，溶液的pH=7，计算所用硫酸溶液的溶质质量分数。
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填空题



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