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某雌雄同株植物花的颜色由两对基因控制．其基因型与表现型的对应关系见下表请回答下列问题．基因组合a Bba bb或aa 花的颜色粉色 Template






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tomski某雌雄同株植物花的颜色由两对基因控制．其基因型与表现型的对应关系见下表请回答下列问题．基因组合a bba bb或aa coloring
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玉米是一种雌雄同株的植物其顶部开雄花下部开雌花在一个育种实验中采用AB两棵植株进行如图所示的杂交实验实验一在杂交Ⅰ中将植株A的 sketch template
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27．玉米是一种雌雄同株植物其顶部开雄花下部叶腋处开雌花已知甜玉米与非甜玉米为一对相对性状且甜玉米对非甜玉米为隐性为探究玉米籽粒中 sketch template
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玉米是一种雌雄同株的植物通常其顶部开雄花下部开雌花在一个育种实验中选取AB两棵植株进行了如下图所示的三组实验 实验一将植株A的 sketch template
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玉米是一种雌雄同株的植物其顶部开雄花下部开雌花在一个育种实验中采用AB两棵植株进行如图所示的杂交实验实 验黄色玉米粒白色玉米粒一 sketch template
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玉米是一种雌雄同株的植物通常其顶部开雄花下部开雌花．在一个育种实验中选取AB两棵植株进行了如图所示的三组实验．据图回答有关问题1 sketch template
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56．玉米是雌雄同株的植物雄花着生在植株顶端的雄穗上雌花着生在茎杆中部叶腋间的雌穗上在一个育种实验中采用AB两个品种的玉米进行如下图 sketch template
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玉米是雌雄同株的植物顶生的垂花是雄花序侧生的穗是雌花序已知玉米中有两对独立遗传的基因可以改变玉米的性别即把雌雄同株转变为雌株或雄株当 sketch template
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玉米是一种雌雄同株的植物通常其顶部开雄花下部开雌花在一个育种实验中选取AB两棵植株进行了如下图所示的三组实验 实验一将植株A的 sketch template
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玉米是一种雌雄同株的植物，其顶端开雄花，中部开雌花 高途 sketch template
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玉米是一种雌雄异花同株的植物通常其顶部开雄花下部开雌花．正常植株为两性植株A B 两对基因分别位于两对同源染色体上植株不能长出 sketch template
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玉米是一种雌雄同株的植物其顶部开雄花下部开雌花．在一个育种实验中采用AB两棵植株进行如图所示的杂交实验实验一在杂交I中将植株A的 sketch template
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玉米是雌雄同株，植株A与植株B相邻种植，请分析回答： 1如图所示，玉米的花粉既可以落在同一植株的柱头上如杂交Ⅰ也可以落到其他植株的柱头 sketch template
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1．玉米是雌雄同株植物顶生雄花侧生雌花．已知玉米籽粒的颜色有黄色和白色之分黄色由基因Y控制白色由基因y控制．在一个育种实验中选取了A sketch template
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题目玉米是一种重要的粮食作物也是遗传研究的良好材料通常是雌雄同株顶生雄花序侧生雌花序如图所示一株由紫色玉米粒育成的植株A与 sketch template
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题目某雌雄同株植物花的颜色由两对基因B和bD和d控制其基因型与表现型的对应关系见表1已知b基因是基因碱基对缺失所致图2为该 sketch template
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题目某雌雄同株异花植物花的颜色上两对等位基因A和aB和b控制其基因型与表现型的对应关系见下表为确定这两对基因的位置拟对AaBb sketch template
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某种植物的花色同时受Aa与Bb两对基因控制．基因型为A bb的植株开蓝花基因型为aaB 的植株开黄花．将蓝花植株杂交取F1红花植株自交 sketch template
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某自然种群的雌雄异株植物为XY型性别决定该植物的花色是由常染色体上的两对独立遗传的等位基因控制叶形由另一对等位基因控制请据图回答．注图 sketch template
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题目某种雌雄同株植物的花色同时受Aa与Bb两对基因控制其花瓣中色素代谢如下图将蓝花植株杂交取F1红花植株自交得F2F2的表现型 sketch template
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某雌雄同株异花的二倍体植物的花色受两对等位基因控制两对等位基因位于细胞核中的染色体上且独立遗传花色色素合成的途径如图所示下列说法错误的 sketch template
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39．某自然种群的雌雄异株植物为XY型性别决定若控制叶型的基因位于右图中A片段I片段为XY染色体的同源区段宽叶显性则该基因在雌株和 sketch template
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某雌雄同株异花的二倍体植物的花色受两对等位基因控制两对等位基因位于细胞核中的染色体上且独立遗传花色色素合成的途径如图所示下列说法错误的 sketch template
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某雌雄异株二倍体植物为XY型性别决定该植物有蓝花和紫花两种表现型由等位基因A和aB和b共同控制已知其紫色素形成的途径如图所示下列叙述 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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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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某种自花授粉闭花授粉的植物其花的颜色为白色茎有粗中粗和细三种．请分析并回答下列问题1自然状态下该种植物一般都是纯合子若让两株 sketch template
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玉米是雌雄同株植物顶生雄花侧生雌花表示传粉方式如下图所示．已知玉米籽粒的颜色有紫色和黄色紫色由基因R控制黄色由基因r控制 sketch template
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题目已知某二倍体雌雄同株植物基因t纯合导致雄性不育而成为雌株宽叶与窄叶由等位基因Aa控制将宽叶雌株与窄叶正常株进行杂交实验其 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的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 sketch template
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题目某自花受粉的植物的花色由2对等位基因A和aB和b控制两对基因独立遗传A对a是显性B对b是显性且A基因存在时B基因不表达 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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某雌雄同株植物花的颜色由两对基因控制．其基因型与表现型的对应关系见下表请回答下列问题．基因组合A BbA bbA BB或aa 花的颜色粉色 sketch template
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某雌雄同株植物花的颜色由两对基因控制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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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的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 sketch template
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某植物花的颜色由两对非等位基因A控制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