第6题: [单项选择]A great difference between men and women is that ______. A. women have two chromosomes but men have only one B. women have two cell lines but men have only one C. women can choose from two chromosomes but men cannot D. women can choose from two cells but men cannot 参考答案:B
第7题: [单项选择]锇酸-α萘胺染色法的结果错误的是() A. 变性髓鞘呈黑色 B. 正常髓鞘呈红色 C. 红细胞呈淡红色 D. 结缔组织呈蓝色 E. 尼氏小体呈紫色 参考答案:E