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南瓜果实的黄色和白色是由一对等位基因控制的用一株黄色果实南瓜和一株白色果实南瓜杂交子代f1既有黄色果实南瓜也有白色果实南瓜让f1自交 Template






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tomski南瓜果实的黄色和白色是由一对等位基因控制的用一株黄色果实南瓜和一株白色果实南瓜杂交子代f1既有黄色果实南瓜也有白色果实南瓜让f1自交 coloring
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南瓜果实的黄色和白色是由一对等位基因控制的用一株黄色果实南瓜和一株白色果实南瓜杂交子代F1既有黄色果实南瓜也有白色果实南瓜让F1自交 sketch template
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南瓜果实的黄色和白色是由一对遗传因子控制的用一株黄色果实南瓜和一株白色果实南瓜杂交子代F1既有黄色果实南瓜也有白色果实南瓜让Fl自交 sketch template
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南瓜果实的黄色和白色是由一对等位基因控制的用一株黄色果实南瓜和一株白色果实南瓜杂交子代F1既有黄色果实南瓜也有白色果实南瓜让F1自交 sketch template
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南瓜果实的黄色和白色是由一对等位基因控制的用一株黄色果实南瓜和一株白色果实南瓜杂交子代F1既有黄色果实南瓜也有白色果实南瓜让F1自交 sketch template
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题目南瓜果实的黄色和白色是由一对遗传因子控制的用一株黄色果实南瓜和一株白色果实南瓜杂交子代F1既有黄色果实南瓜也有白色果实南瓜让 sketch template
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南瓜果实的黄色和白色是由一对等位基因控制的用一株黄色果实南瓜和一株白色果实南瓜杂交子代F1既有黄色果实南瓜也有白色果实南瓜让F1自交 sketch template
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南瓜果实的黄色和白色是由一对等位基因控制的用一株黄色果实南瓜和一株白色果实南瓜杂交子代F1既有黄色果实南瓜也有白色果实南瓜让F1自 sketch template
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南瓜果实的黄色和白色是由一对等位基因控制的用一株黄色果实南瓜和一株白色果实南瓜杂交子代F1既有黄色果实南瓜也有白色果实南瓜让F1自交 sketch template
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南瓜果实的颜色是由一对等位基因控制的用一株黄色果实南瓜和一株白色果实南瓜杂交子代F1既有黄色果实南瓜也有白色果实南瓜让F1自交产生的 sketch template
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南瓜果实的颜色是由一对等位基因控制的用一株黄果南瓜和一株白果南瓜杂交F1自交产生的F2的表现型如右图所示根据图示分析下列说法错误的是 sketch template
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南瓜果实的颜色是由一对等位基因控制的用一株黄色果实南瓜和一株白色果实南瓜杂交子代F1既有黄色果实南瓜也有白色果实南瓜让F1自交产生的 sketch template
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南瓜果实的颜色是由一对等位基因控制的用一株黄色果实南瓜和一株白色果实南瓜杂交子代F1既有黄色果实南瓜也有白色果实南瓜让F1自交产生的 sketch template
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南瓜果实的颜色是由一对等位基因控制的用一株黄色果实南瓜和一株白色果实南瓜杂交子代F1既有黄色果实南瓜也有白色果实南瓜让F1自交产生的 sketch template
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南瓜的花色是由一对等位基因控制的用一株开黄花的南瓜和一株开白花的南瓜杂交子代F1既有开黄花的也有开白花的让F1自交产生F2表现型 sketch template
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南瓜果实的黄色和白色是由一对等位基因控制的用一株黄色果实南瓜和一株白色果实南瓜杂交子代F1既有黄色果实南瓜也有白色果实南瓜让F1自交 sketch template
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已知马的栗色和白色为一对相对性状现有一匹白色公马交配先后产生两匹白色母马．根据以上信息分析可得出的结论是 A．马的白色对栗色为显性B sketch template
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下列说法正确的是 A．基因型为AaaBBb的植株属于三倍体 B．基因型为AaBbDd的植株经花药离体培养后得到n株幼苗其 sketch template
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南瓜果实的颜色是由一对等位基因控制的用一株黄色果实南瓜和一株白色果实南瓜杂交子代F1既有黄色果实南瓜也有白色果实南瓜让F1自交产生的 sketch template
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人类每条染色体上都有很多基因下图表示1号染色体上的几种基因对性状的控制及基因在染色体上的分布位置若不考染色体交叉互换据此不能得出的结论 sketch template
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南瓜的花色是由一对等位基因控制的用一株开黄花的南瓜和一株开白花的南瓜杂交子代F1既有开黄花的也有开白花的让F1自交产生F2表现型 sketch template
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某植物体有三对等位基因它们独立遗传并共同决定此植物的高度当有显性基因存在时每增加一个显性基因该植物会在基本高度2 Cm的基础上再增加2 sketch template
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如图所示细胞ⅠⅡ以及物质EF可能依次是 A下丘细胞垂体细胞促甲状腺激素受体B效应B细胞病毒抗体抗原C甲状腺细胞 sketch template
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南瓜的花色由一对等位基因控制．相关杂交实验及结果如图所示．下列说法中错误的是 A．F1的表现型及其比例可验证基因的分离定律B．由过程可知 sketch template
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如图表示某动物细胞中部分染色体及基因组成下列有关叙述不正确的是 A该动物细胞是初级精母细胞Bh基因的遗传遵循伴性遗传规律CXY是 sketch template
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64．右表为豌豆两对相对性状遗传实验中F2基因型两对等位基因位于两对同源染色体上 配子 YR Yr ——青夏教育精英家教—— sketch template
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报春花的花色白色和黄色由两对等位基因共同控制两对等位基因独立遗传控制机理如图．现选择AABB和aabb两个品种进行杂交得到F1F1自交 sketch template
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在人体肝脏细胞内不能生的是 A．糖原水解成萄糖并释放到细胞外B．合成并释放淋巴因子C．H2O2酶催化H2O2分解成水和氧气D．丙酮酸 sketch template
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题目鹦鹉羽毛的颜色有蓝色绿色黄色和白色四种由两对独立遗传的等位基因控制其中Bb这对等位基因位于Z染色体上其遗传机理如图现有多 sketch template
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假定某高等生物体细胞的染色体数是10条其中染色体中的DNA用3H一胸腺嘧啶标记将该体细胞放入不含有同位素的培养液中连续培养了2代则在形成 sketch template
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Y黄色和y白色是位于某种蝴蝶常染色体上的一对等位基因雄性有黄色和白色雌性中无论基因型如何表现型只有白色下列杂交组合中可以从其 sketch template
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题目人的X染色体和Y染色体大小形态不完全相同但存在着同源区Ⅱ和非同源区ⅠⅢ如图所示下列有关叙述错误的是 A．若某病是 sketch template
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题目一只色公羊和一只色母羊交配生了两只色子羊和一只白色子羊．下列对这一事实的有关叙述不正确的一项是 A绵羊的色与白色是一 sketch template
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报春花的花色表现为白色和黄色一对相对性状由两对等位基因共同控制显性基因A控制以白色素为前体物合成黄色锦色素的代谢过程但当显性基因B存在 sketch template
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果绳的颜色由两对独立遗传的等位基因控制A决定色素产生H使色素紫色h使色素红色aa个体眼睛白色．两只纯合果绳杂交结果如图下列分析 sketch template
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水稻的非糯性和糯性是一对相对性状受Bb这对等位基因控制．非糯性花粉中所含的淀粉为直链淀粉遇碘液变蓝色而福性花粉中所含的淀粉为支链淀粉 sketch template