题目

阅读理解 Heritageis our legacy (遗产) from thepast, what we live with today, and what we pass on to future generations. Ourcultural and natural heritage are both irreplaceable (无可取代的) sources of life and inspiration. Places as unique and diverse asthe Pyramids of Egypt, the Great Barrier Reef in Australia and the Great Wallof China make up our world's heritage. TheUnited Nations Educational, Scientific and Cultural Organization (UNESCO) seeksto encourage the identification, protection and preservation of cultural andnatural heritage around the world considered to be of outstand10.某种牵牛花的花瓣中含有红、黄、蓝三种色素,这些色素由A、a,B、b,G、g三对等位基因控制合成,各种色素的合成与有关基因的关系如图.花瓣的颜色除了红色、黄色和蓝色外,还会出现蓝色物质与红色物质混合的紫色、蓝色物质与黄色物质混合的绿色,缺乏上述三种色素时花瓣呈白色.(1)基因型为AaBbGg的牵牛花植株花瓣颜色为紫色蓝色花的基因型是黄色或绿;含A但不含B基因的牵牛花植株花瓣颜色表现为蓝色花的基因型是黄色或绿色.(2)任意选取两株蓝色牵牛花杂交,子代可能出现的性状及其分离比为全部蓝色或者蓝色:白色=3:1,子代中纯合蓝花植株的基因型为aabbGG或aaBBGG.(3)现用基因型为aabbGG的蓝色花瓣牵牛花与一未知基因型的红色花瓣牵牛花M杂交,请预期实验结果并推断红色花瓣牵牛花M的基因型.①若子代全部是紫色花瓣,说明M的基因型是AABBgg;②若子代紫色:蓝色=1:1,说明M的基因型是AaBBgg;③若子代紫色:绿色=1:1,说明M的基因型是AABbgg;④若子代紫色:绿色:蓝色=1:1:2,说明M的基因型是AaBbgg.
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