题目

阅读理解 We have two daughters: Kristen is seven years old and Kelly is four. Last Sunday evening, we invited some people home for dinner. I dressed them nicely for the party, and told them that their job was to join Mommy in answering the door when the bell rang. Mommy would introduce them to the guests, and then they would take the guests' coats upstairs and put them on the bed in the second bedroom. The guests arrived. I introduced my two daughters to each of them. The adults were nice and kind and said how lucky we were to have such good kids. Each of the guests made a particular fuss 长期以来，优良种畜的繁殖速度始终是限制畜牧养殖业发展的瓶颈，近年来发展起来的细胞工程和胚胎工程技术为优良种畜的快速繁殖带来了无限生机，请据图完成下列问题： (1)在试管牛和克隆羊的培育过程中都必须用到的生物技术有______、________(至少写出二项)。(2)和受精有关的过程有：①．第一次卵裂开始；②．释放第二极体；③．顶体反应；④．穿越透明带；⑤．雌、雄原核的形成；⑥．核膜消失，雌、雄原核融合。其正确的顺序为_____________(填序号)。(3)超数排卵技术的处理措施是对供体母牛注射__________；冲卵实质上是用特定装置，将供体母牛子宫内的_____________冲洗出来。(4)从A到E中，适宜于牛的胚胎移植时期有__________；图中标号3为_____________，它将来可发育为胎膜和胚盘。(5)动物的早期胚胎移植到同种且__________与供体相同的动物体内，使之继续发育为新个体的技术叫做胚胎移植。用某染料鉴定胚胎细胞是否为活细胞时，发现活胚胎细胞不能被染色，其原因是活细胞膜___________。(6)试管牛E的性别为_______，克隆羊多利的性状和_____最接近，原因是____________。