[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fXGgpWQBxoQmV3l-Tl0tzMT84GCuTY7x5zWpJ3vvkHwM":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":26,"type":27},[],"2023-11-26 21:50:07",108878752,[8,9,10,11],"0.8","0.64","0.32","0.16",{"courseId":13,"courseImg":14,"courseName":15},"5afec51f1bf2b79493a32938a29765ab","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9c1e48361b00f3ee2086f4e259ed792b.jpg","遗传学","由等位基因A-a组成的遗传平衡群体,A基因频率为0.8,那么Aa基因型频率为 ( )",[18,28,37,46,55,58,67,77,86,93],{"answer":19,"createTime":5,"id":20,"options":21,"question":25,"source":26,"type":27},[],108878741,[22,23,24],"孟德尔定律","哈德-魏伯格定律","连锁定律C、中心法则","在一个大的随机交配群中,基因频率和基因型频率在无突变、选择等情况下,遵循( )而保持各代不变.( )","v1",0,{"answer":29,"createTime":5,"id":30,"options":31,"question":36,"source":26,"type":27},[],108878742,[32,33,34,35],"自花授粉群体","回交后代群体","随机交配群体","测交后代群体","基因频率和基因型频率保持不变,是在(3)中,交配一代后情况下能够实现( )",{"answer":38,"createTime":5,"id":39,"options":40,"question":45,"source":26,"type":27},[],108878747,[41,42,43,44],"4%AA:32%Aa:64%aa","100%AA","32%AA:64%Aa:4%aa","3%AA:47%Aa:50%aa","下列群体中哪一个处于遗传平衡中 ( )",{"answer":47,"createTime":5,"id":48,"options":49,"question":54,"source":26,"type":27},[],108878749,[50,51,52,53],"基因型","表现型","基因","性状","亲代传给子代的是( )",{"answer":56,"createTime":5,"id":6,"options":57,"question":16,"source":26,"type":27},[],[8,9,10,11],{"answer":59,"createTime":5,"id":60,"options":61,"question":66,"source":26,"type":27},[],108878754,[62,63,64,65],"0.06:0.62:0.32","0.04:0.32:0.64","0.32:0.08:0.60","0.04:0.36:0.60","在一个随机交配群 ,基因频率为A=0.2,a=0.8,如随机交配一代,则产生的新群体的基因型频率为( )",{"answer":68,"createTime":5,"id":69,"options":70,"question":76,"source":26,"type":27},[],108878757,[71,72,73,74,75],"900","10","1","30","3000","环境变化突然使一种隐性等位基因完全致死.要使它的频率从10-2减少到10-3,这将经过多少世代? ( )",{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":26,"type":27},[],108878759,[81,82,83,84],"近亲结婚的后代必患遗传病","近亲结婚是社会道德所不允许的","1C、近亲结婚的后代患遗传病的几率会增加","遗传病都是由隐性基因控制的","禁止近亲结婚的理论依据是( )",{"answer":87,"createTime":88,"id":89,"options":90,"question":91,"source":26,"type":92},[],"2023-11-26 22:00:20",108885334,[],"Hardy-Weinberg定律认为,在____的大群体中,如果没有其他因素的干扰,各世代间的____频率保持不变.在任何一个大群体内,不论初始的基因型频率如何,只要经过____,群体就可以达到____",2,{"answer":94,"createTime":88,"id":95,"options":96,"question":97,"source":26,"type":92},[],108885337,[],"假设羊的毛色遗传由一对基因控制,黑色(B)完全显性于白色(b),现在一个羊群中白毛和黑毛的基因频率各占一半,如果对白色个体进行完全选择,当经过____代选择才能使群体的b基因频率(%)下降到20%左右"]