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某植物的紫花和白花这一对性状受两对等位基因控制如图所示其单倍体植株开花不结实．1如图说明基因可以通过控制酶的合成来控制代谢过程进而 Template






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sketch 5070 The Rolling Stones by Roby Krdoso
sketch 4306 The burning watermelon!
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sketch 4424 MJ by Nycole Prietsch

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tomski某植物的紫花和白花这一对性状受两对等位基因控制如图所示其单倍体植株开花不结实．1如图说明基因可以通过控制酶的合成来控制代谢过程进而 coloring
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如图是豌豆花色的遗传图解请据图分析回答问题l豌豆的亲代都是紫花而后代中出现了白花这种现象在生物学上称为 豌豆的紫花性状和白花性状 sketch template
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题目某植物的紫花对白花是一对相对性状由基因A和aB和b共同控制过程如图下列说法正确的是 A该图体现了基因控制蛋白质的合成来 sketch template
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大豆的白花和紫花是一对相对性状下列四组杂交实验中能判断出显性和隐性关系的是 紫花×紫花→紫花紫花×紫花→301紫花 101白花 sketch template
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如图是豌豆花色的遗传图解请据图分析回答问题l 豌豆的紫花和白花这一对性状在遗传学上称为相对性状相对性状图中豌豆的亲代没有白花而后代 sketch template
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麝香豌豆花的颜色有紫花和白花受两对等位基因控制关系如下如果开白花与开紫花的植株杂交产生的后代有38开紫花58开白花其亲本的基因型是 sketch template
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某双子叶植物的花色有紫色红色和白色三种类型现有三组杂交试验杂交试验1紫花×白花杂交实验2紫花×白花杂交实验3红花×白花 三组 sketch template
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某植物的红花与白花受一对等位基因控制．某学生用杂种红花植株自交获得F1用F1中的所有红花个体自交产生F2．从理论上分析下列说法正确的是 sketch template
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题目某植物的紫花对白花是一对相对性状由基因A和aB和b共同控制过程如图下列说法正确的是 A该图体现了基因控制蛋白质的合成来 sketch template
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11．浙江省东关中学22甜豌豆的紫花对白花是一对相对性状由两对等位基因共同控制其显性基因决定花色的过程如下图所示 1从图解可见紫花 sketch template
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甜豌豆的紫花对白花是一对相对性状由两对等位基因共同控制其显性基因决定花色的过程如图2所示下列根据此图的叙述不正确的是 A．紫花植株必须 sketch template
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某种植物的花色由两对独立遗传的等位基因Aa和Bb控制基因A控制红色素合成基因B为修饰基因BB使红色素完全消失Bb使红色素颜色淡化 sketch template
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题目某植物花色受两对基因A A和Bb控制基因控制性状的途径如下图一紫花植株自交后代出现了白花红花和紫花植株下列分析正确的 sketch template
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某植物的花色有紫色红色和白色三种类型该性状是由两对独立遗传的等位基因决定的且只有在两种显性基因同时存在时才能开紫花．表为该植物纯合亲本间 sketch template
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豌豆的紫花和白花是一对相对性状这对相对性状由等位基因Aa控制．如表是豌豆花色的三个组合的遗传实验结果．请分析回答组合亲本表现型F1的表现 sketch template
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某种开花植物细胞中基因P分别位于两对同源染色体上将纯合的紫花植珠与纯合的红花植株杂交F1全开紫花自交后代F2中紫花∶红花∶白花＝12∶ sketch template
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某植物的紫花和白花这一对性状受两对等位基因控制如图所示其单倍体植株开花不结实．1如图说明基因可以通过控制酶的合成来控制代谢过程进而 sketch template
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如图表示植物的两种不同生殖方式请据图回答下列问题．1图甲的生殖方式属于 若接穗为开红花的碧桃砧木为开白花的碧桃嫁接枝条上花朵的颜色 sketch template
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题目某植物的花色有蓝花和白花两种由两对等位基因控制下表是两组纯合植株杂交实验的统计结果有关分析不正确的是A．控制花色的这两对等位基因 sketch template
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豌豆是研究植物性状遗传的常用实验材料现将两株紫花豌豆作为亲本进行杂交收集种子种植下去观察子代豌豆的花色并统计数据请分析作答1豌豆 sketch template
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一对相对性状可受多对等位基因控制如某植物花的紫色显性和白色隐性这对相对性状就受多对等位基因控制学家已从该种植物的一个紫花品系中 sketch template
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题目某多年生植物的花色受两对独立遗传的基因控制AB分别控制红色素和蓝色素合成B基因的表达受到A基因制存在AA时开红花存在Aa时 sketch template
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某雌雄异株植物的紫花与白花宽叶与窄叶是两对相对性状．将紫花宽叶雌株与白花窄叶雄株杂交F1无论雌雄全部为紫花宽叶F1雌雄植株相互杂交后 sketch template
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学家用32P标记的磷酸盐浸泡蚕豆幼苗追踪32P的去以研究蚕豆根尖细胞分裂情况得到根尖细胞连续分裂的时间数据如图所示．下列叙述不正确的是 sketch template
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甜豌豆的紫花对白花是一对相对性状由两对等位基因共同控制其显性基因决定花色的过程如图2所示下列根据此图的叙述不正确的是 A．紫花植株必须 sketch template
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一对相对性状可受多对等位基因控制如某植物花的紫色这对相对性状就受多对等位基因控制学家已从该种植物的一个紫花品系中选育出了5个基因型不同 sketch template
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某种植物的花色性状受一对等位基因控制且红花基因对白花基因为显性现将该植物群体中的白花植株与红花植株杂交子一代中红花植株和白花植株的比值为 sketch template
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某种野生植物有紫花和白花两种表现型已知紫花形成的生物化学途径是 A和aB和b是分别位于两对染色体上的等位基因A对aB对b为显性基因 sketch template
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题目某植物的花色由一对等位基因控制杂交实验及结果如下图所示相关说法错误的是A 根据过程的结果白花为显性性状B F1和F2中的 sketch template
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某植物的花色受位于常染色体上的两对独立遗传的等位基因控制花色形成的生化途径如图所示酶M的活性显高于酶N当两种酶同时存在时所有的底物都 sketch template
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某植物花的颜色由两对非等位基因A调控．A基因控制色素合成A出现色素AA和Aa的效应相同B为修饰基因淡化颜色的深度B修饰效应出现 sketch template
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题目某植物的花色有紫色红色和白色三种类型该性状是由两对独立遗传的等位基因决定的且只有在两种显性基因同时存在时才能开紫花下表为该植物 sketch template
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甜豌豆的紫花对白花是一对相对性状由两对等位基因共同控制其显性基因决定花色的过程如图2所示下列根据此图的叙述不正确的是A．紫花植株必须 sketch template
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题目某种野生植物有紫花和白花两种表现型已知紫花形成的生物化学途径如下图所示其中A和aB和b是分别位于两对同源染色体上的等位基因且A sketch template
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一对相对性状可受多对等位基因控制如某植物花的紫色显性和白色隐性这对相对性状就受多对等位基因控制学家已从该种植物的一个紫花品系中 sketch template
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甜豌豆的紫花对白花是一对相对性状由两对等位基因共同控制其显性基因决定花色的过程如图2所示下列根据此图的叙述不正确的是 A．紫花植株必须 sketch template