题目

Visit the Newseum During “Museum Day”!Museum Day is an annual celebration of boundless curiosity hosted by Smithsonian magazine. Participating museums and cultural institutions across the country provide free entry to anyone presenting a Museum Day ticket. The Museum Day ticket provides free admission for two people.Here is some information about a popular museum — the Newseum.EVENT DETAILSRegistration: free tickets will be available for the public to download on December 15 via the link : https ://www. smithsonianmag. com/museumday/museum-day-2018/.Advanced registration is requested s22、如图所示遗传系谱中有甲(基因设为D、d)、乙(基因设为E、e)两种遗传病,其中一种为红绿色盲症。下列有关叙述中不正确的是 A.甲病基因位于常染色体上,乙病基因位于X染色体上 B.II6的基因型为DdXEXe,II7的基因型为DdXeY C.II 7和II8生育一个两病兼患的男孩的几率为1/8 D.II13所含有的色盲基因来自I 2和I3
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