2012年高考生物试卷（广东）（空白卷）
1.有关生物膜结构与功能的叙述，正确的是A.膜载体蛋白的合成不需要ATPB.葡萄糖跨膜运输不需要载体蛋白C.线粒体外膜与内膜的主要功能不同D.变形虫和草履虫的细胞膜基本组成成分不同2.培育草莓脱毒苗所采用的主要技术是[来源:学*科*网Z*X*X*K]A.组织培养B.细胞杂交C.显微注射D.核移植3.分析下表，可推测注：“+”显色，“++”显色更深；“-”不显色.A.甲溶液含有淀粉酶B.乙溶液含有还原糖C.混合溶液不含淀粉D.混合溶液含有淀粉酶6、科学家用人工合成的染色体片段，成功替代了酵母菌的第6号和第9号染色体的部分片段，得到的重组酵母菌能存活，未见明显异常，关于该重组酵母菌的叙述，错误的是...
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