[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fM5tG9N0I9zCNBud7iJRoVZFyMR-Xfew_l1ukJcGAqJU":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-12-16 00:39:18",171372913,[8,9,10,11],"变异","选择","适应","隔离",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},20,"a7c0a126e35f643f393eb02751cb4315","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25b30343053994e8940089572d36015b.jpg","遗传学","work_39694767","第7章 群体遗传与进化测试题","细菌抗药性的提高是由下列那种原因()",[21,32,41,50,59,68,77,86,95,104],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],171372903,[25,26,27,28],"生活在地穴中的盲螈,因长期不用眼睛而失去视觉","食蚁兽的长舌因长期添食树缝中的蚂蚁反复伸长所致","鹿和狼在长期的生存斗争中相互进行选择,结果发展了自己的特征","春小麦逐年冬种,可以变成冬小麦,这是环境影响的结果","按照达尔文的自然选择学说,下列叙述正确的是()","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],171372904,[36,37,38,39],"200人","210人","220人","230人","在ABO血型中,IA频率为0.24,IB频率为0.06,i频率为0.70.若具该血型系统的429人受检,估算具有O型血的人数应为()",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],171372905,[45,46,47,48],"1\u002F25","1\u002F50","1\u002F102","1\u002F625","囊性纤维变性是一种常染色体遗传病.在欧洲人群中,每2500个人中就有一 个人患此病.若一对健康的夫妇有一患有此病的孩子;此后,该妇女与一健康的男子再婚.再婚后该夫妇生一孩子患该病的概率是( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],171372906,[54,55,56,57],"饰变","表型的可朔性","突变","表型复制","种内进化的材料是",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],171372907,[63,64,65,66],"kmn","kln","jkm","jln","对自然选择学说的正确理解是() j环境改变使生物产生适应性的变异;k能够遗传的变异是生物进化的基础;l变异是不定向的;m变异是定向的;n变异经过长期自然选择和积累可以产生生物的新类型",{"answer":69,"createTime":5,"id":70,"options":71,"question":76,"source":30,"type":31},[],171372908,[72,73,74,75],"94%","54%","47%","17.2%","在一个种群中,随机抽出一定数量的个体,其中基因型为BB的个体占14%,Bb的个体占80%,bb的个体占6%,则基因B的频率是()",{"answer":78,"createTime":5,"id":79,"options":80,"question":85,"source":30,"type":31},[],171372909,[81,82,83,84],"81%,18%,1%","45%,40%,15%","18%,81%,1%","45%,45%,10%","在豚鼠中,黑毛对白毛是显性,如果基因库中90%是显性基因B,10%是显性基因b,则群体中基因型BB、Bb、bb的频率分别是()",{"answer":87,"createTime":5,"id":88,"options":89,"question":94,"source":30,"type":31},[],171372910,[90,91,92,93],"基因频率是指某种基因在某个种群中出现的比例","种群中一对等位基因的频率之和等于1,其基因型频率之和也等于1","自然界中种群的基因频率总是在不断变化着,基因频率的变化是导致基因库变化的原因","自然选择是影响基因频率的唯一因素","下列关于基因频率的叙述错误的是()",{"answer":96,"createTime":5,"id":97,"options":98,"question":103,"source":30,"type":31},[],171372911,[99,100,101,102],"一个池塘中的全部的鱼","一块棉田中全部的害虫","一片森林中的全部山毛榉","一块麦田中的全部杂草","下列属于一个种群的是()",{"answer":105,"createTime":5,"id":6,"options":106,"question":19,"source":30,"type":31},[],[8,9,10,11]]