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番茄紫茎是显性缺刻叶是显性这两对性状独立遗传1用两个番茄亲本杂交f1性状比例如上表．这两个亲本的基因型分别是 和 ．2用表现型 Template






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sketch 2646 Buzzy bee on flowers
sketch 5275
sketch 4622 Miku by Kheith Ryan Lubiano
sketch 5287
sketch 5214 Crying with a Smile by Bill Kody
sketch 3047 Oppa Pika Style by Itz Rakhi
sketch 1183
sketch 1964 愛鼠繪

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sketch 2678 Portrait by Jocelyn Alejandra Rantul
sketch 2464 Spongebob by sketchmaster
sketch 5085 CM Punk by Luciana Nazar
sketch 5207 Gorilla by Jean-Benoit Renaud
sketch 334 DON 'T!
sketch 4446 EDDIE by يآآسر محمد
sketch 297 Fish
sketch 5415





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sketch #3686 Toy Story by Thania Arruda

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sketch #3083 Great illustration Ali Hänel

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sketch #3908 Rawr! by Timothy Palfreyman

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sketch #2479 C 'est qui ? Un rasta qui a manger trop de poulpe farcis. ? Un vieux chanteur de blue grass ? Najdica tomktoo ? A vous de me dire...
Pascal Quéru
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sketch #666
Tom Kelly
sketch #666

tomski番茄紫茎是显性缺刻叶是显性这两对性状独立遗传1用两个番茄亲本杂交f1性状比例如上表．这两个亲本的基因型分别是 和 ．2用表现型 coloring
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番茄中缺刻叶C对马铃薯叶c为显性紫茎A对绿茎a为显性两对性状相互独立从图六可以推出Ⅰ的表现型为A．缺刻叶紫茎 B．缺 sketch template
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番茄紫茎是显性缺刻叶是显性让紫茎缺刻叶亲本与绿茎缺刻叶亲本杂交后代植株数是紫缺321紫马101绿缺310绿马107如果两对等位 sketch template
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番茄紫茎是显性缺刻叶是显性这两对性状独立遗传 1用两个番茄亲本杂交F1性状比例如上表这两个亲本的基因型分别是 和 2用 sketch template
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题目番茄的紫茎和绿茎是一对相对性状受Aa基因控制缺刻叶和马铃薯叶是一对相对性状受Bb基因控制两对基因的位置下图研究现 sketch template
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番茄紫茎是显性缺刻叶是显性这两对性状独立遗传1用两个番茄亲本杂交F1性状比例如上表．这两个亲本的基因型分别是 和 ．2用表现型 sketch template
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番茄紫茎是显性缺刻叶是显性这两对性状独立遗传 1用两个番茄亲本杂交F1性状比例如上表这两个亲本的基因型分别是 和 2用 sketch template
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在番茄中紫茎和绿茎是一对相对性状缺刻叶和马铃薯叶是另一对相对性状控制这两对相对性状的等位基因分别位于两对同源染色体上．现将紫茎缺刻叶和绿 sketch template
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番茄的紫茎是显性缺刻叶是显性现有两株不知性状的亲本杂交得到后代的性状和株数为紫缺321紫马320绿缺318绿马322如控制这两 sketch template
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番茄紫茎是显性缺刻叶是显性让紫茎缺刻叶亲本与绿茎缺刻叶亲本杂交后代植株数是紫缺321紫马101绿缺310绿马107如果两对等位 sketch template
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番茄的红果对黄果是显性圆果对长果是显性且自由组合现用红色长果与黄色圆果番茄杂交从理论上分析其后代的基因型不可能出现的比例 A sketch template
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将双链都有3H标记的1个DNA分子放入没有标记的溶液中经过3代复制后有3H标记的DNA分子的数量是 A．1个 B．2个 C．4个 sketch template
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番茄紫茎是显性缺刻叶是显性这两对性状独立遗传 1用两个番茄亲本杂交F1性状比例如上表这两个亲本的基因型分别是 和 2用 sketch template
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番茄的红果是显性让杂合的红果番茄自交得F1淘汰F1中的黄果番茄利用F1中的红果番茄自交和随机交配其后代RRRrrr三种基因型的比例 sketch template
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C4植物叶片中能进行C3途径的是 A．叶肉细胞B．维管束鞘细胞C．AB两项都可以D．AB两项都不能 题目和参考答案——青夏教育精英家教—— sketch template
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如图是豌豆的遗传图解．根据图解可以推测高茎矮茎分别是 A．显性性状隐性性状B．隐性性状显性性状C．隐性性状隐性性状D．显性性状 sketch template
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32．番茄中红果是显性如果把红果植株上的花粉授到黄果植株的柱头上所结果实的颜色和果实内某一粒种子所含胚的基因型分别是 A．黄或红 sketch template
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题目番茄是二倍体植物2N=24番茄的红果R对黄果r为显性高茎H对矮茎h为显性请回答下列问题1 图甲表示用 sketch template
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番茄的花色和叶的宽窄分别由一对等位基因控制且两对基因中某一对基因纯合时会使受精卵致死现用红色窄叶植株自交子代的表现型及其比例为红色窄叶 sketch template
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孟德尔为研究生物性状的遗传选用纯种豌豆进行杂交实验下图示他选取纯种高茎和矮茎豌豆亲代进行杂交实验请根据实验及有关遗传学知识回答下列问题 sketch template
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题目在可以调节温度的温室里栽培番茄研究昼夜温差对番茄茎生长的影响图1是根据日温均为26℃夜温在不同温度下测定的数据绘制的曲线图图2 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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已知番茄的红果对黄果为显性高茎对矮茎为显性．甲图为某红果高茎番茄与黄果矮茎番茄测交得到子一代再与黄果矮茎番茄测交得到子二代的结果据图分析 sketch template
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豌豆的黄色子叶是显性有色种皮是显性用纯合的黄色子叶有色种皮的豌豆作父本用绿色子叶无色种皮的豌豆作母本进行杂交所得种子连续播种和自 sketch template
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如图是豌豆的遗传图解．根据图解可以推测高茎矮茎分别是 A．显性性状隐性性状B．隐性性状显性性状C．隐性性状隐性性状D．显性性状 sketch template
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题目豌豆属于严格的自花传粉植物在自然状态下容易控制外界因素对实验的干扰且相对性状明显是遗传学家研究遗传规律的理想材料请回答下列问题 sketch template
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题目生态系统是由生产者和消费者组成的 题目和参考答案——青夏教育精英家教—— sketch template
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图甲乙分别代表某种植物两不同个体细胞的部分染色体与基因组成其中高茎显性卷叶显性红花显性已知失去图示三种基因中的任意一种都会导致配子 sketch template
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题目雌雄异株的高等植物剪秋罗有宽叶和窄叶两种类型其性别决定方式为XY型为研究剪秋罗叶形遗传做了3组杂交实验结果如下表据此分析回答 sketch template
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豌豆的高茎与豌豆的矮茎杂交子一代都表现出高茎这种高茎属于 A相对性状B显性性状C隐性性状D混杂性状 题目和参考答案——青夏 sketch template
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题目黄色皱粒豌豆与绿色圆粒豌豆杂交子代的性状表现类型按每对相对性状进行分析和统计的结果如下图所示请分析回答黄色是显性圆粒是显性 sketch template
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高茎豌豆AA与矮茎豌豆aa杂交后矮茎基因就从后代消失了． 题目和参考答案——青夏教育精英家教—— sketch template
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下图甲乙丙丁分别表示四株豌豆体细胞中染色体和基因的组成表示两对等位基因分别控制两对不同的相对性状请据图回答 1若甲豌豆一个 sketch template
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番茄紫茎为显性缺刻叶为显性．根据自由组合定律亲本为AABB×aabb在2400株F2中新类型占 A．1500B．900C．300D sketch template
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为研究豌豆的高茎与矮茎花的顶生与腋生两对性状的遗传进行了两组纯种豌豆杂交实验如图所示据图分析下列说法正确的是 A．两对性状分别 sketch template
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显微观察 植物幼根横切（单子叶） 知乎 sketch template