“藕断丝连”是常见的现象，这里的“丝”来自植物体的（  ）

如图是一组用于研究可燃物燃烧条件的对比实验，对有关实验现象和结论的判断错误的是（　　）

    It's Sunday afternoon. Michael's family have a picnic under (在……下面) a big tree. The woman in a blue T-shirt and white pants is Michael's mother. ⑴She is thirty-two. She is a teacher in No. 2 high School. She is cooking now. The man with a guitar is Michael's father. He is thirty-four years old. ⑵He teaches in the same school as Michael's mother. He is a teacher. Michael's little sister likes singing, but she isn't singing now. ⑶“为什么不和我一起去放风筝呢？”Michael问他的小妹妹。⑷Then she flies a kite with her brother. What a happy family!

若基因型为AaBbCCDDee的个体与基因型为AABbCcDDEe的个体交配，在子代中，纯合子的比例应是(假设各对基因独立遗传)               (　　)。