问题
单项选择题
线粒体DNA上的基因所表达的酶与线粒体功能有关。若一个母亲患有线粒体DNA损伤疾病,则下列描述正确的是()
A.其子女中只有男孩可能患病
B.其子女中只有女儿患病
C.子女均正常
D.子女均患病
答案
参考答案:D
线粒体DNA上的基因所表达的酶与线粒体功能有关。若一个母亲患有线粒体DNA损伤疾病,则下列描述正确的是()
A.其子女中只有男孩可能患病
B.其子女中只有女儿患病
C.子女均正常
D.子女均患病
参考答案:D
选用恰当的连接词填空。 | |
2. I am not sure ____ he will lend me ahand. 3. My parents are very kind to me and always let me do ____ I think Ishould. 4. The trouble is ____ I am anxious to telephone Mr Srmth but I have lost hisnumber. 5. He looked just ____ he had looked ten years ago. 6. It sounds ____ someone is knocking at the window. |