题目

用be动词的适当形式填空，完成下面短文Hello! IWu Haiyuan. My English name Betty. Therethree people in my family. They are my father, my mother and I. I have two pen friends. They Ann and Linda. They from America. Ann and Linda in Grade Two, but Ann in Class Three, and Lindain Class Four. Iin Class One, Grade Two. We very happy every day. 答案：【1】am【2】is【3】are【4】are【5】are【6】Are【7】is【8】is【9】am【10】are下图为某家族系谱图，图中斜线阴影表示的是甲种遗传病（相关基因用A、a表示）患者，黑色表示红绿色盲（相关基因用B、b表示）患者。请据图回答下列问题：（1）甲种遗传病的致病基因位于________染色体上，是________性遗传。（2）图中Ⅲ2表现型正常，且与Ⅲ3为双胞胎，则Ⅲ3不患甲病的可能性为________。（3）图中Ⅰ4的基因型是________，Ⅰ3的基因型是________。（只写与色盲有关的基因型）（4）若图中Ⅱ4为纯合子，则Ⅳ1两病兼患的概率是________。