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20．某植物种子的颜色有黄色和绿色之分受多对独立遗传的等位基因控制．现有两个绿色种子的纯和品系定为xy．让xy分别与一纯合的黄色种子的 Template






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sketch 2862 Grumpy Cat
sketch 5124 Tony Tony Chopper by 陳一夫
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sketch 21085 Tobirama by Enrique L. Manly
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tomski20．某植物种子的颜色有黄色和绿色之分受多对独立遗传的等位基因控制．现有两个绿色种子的纯和品系定为xy．让xy分别与一纯合的黄色种子的 coloring
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芝麻 智汇三农 sketch template
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在学习完了植物各类群知识掌握了植物各类群的特征后你可以根据植物的特征对其进行学分类请你认真观察下图并阅读表解回答后面的问题探究 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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认植物 教书般的植物形态图解，超全！ 州陈砦花卉服务有限公司 sketch template
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种子与幼苗实验 sketch template
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下图为菜豆种子和玉米种子的结构图根据图分析回答问题 菜豆种子和玉米种子结构的相同点是都有 和 而且胚都由 ——青夏教育精英家教—— sketch template
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种子萌的过程 ——青夏教育精英家教—— sketch template
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第七章 裸子植物（Gymnosperm） 植物学 地理教师 sketch template
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下面是绿色植物受精过程种子芽和植株结构示意图请认真观察图示并分析回答1绿色植物育的起点是 在图一 中形成的2受精卵 sketch template
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被子植物的一生要经历生长育繁殖衰老和死亡等几个连续的过程种子的萌植株的生长开花与结果是其中重要的阶段根据以下图示回答问题 sketch template
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下图是植物的种子根叶茎花的形态结构示意图 请据图回答 图中的 表示双子叶植物的种子 ——青夏教育精英家教—— sketch template
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为大豆种子的萌提供营养的是 A．种皮 B．子叶 C．胚根 D．胚芽——青夏教育精英家教—— sketch template
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农作物育种学 sketch template
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玉米籽粒有甜和非甜两个品种种皮有黄色和白色之分植株有高茎和矮茎两种现将纯合的黄种皮甜玉米植株的花粉给纯合的白种皮非甜玉米植株授粉结出的 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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下图表示某一植物的一段枝条叶芽种子的结构示意图据图回答 甲 乙 丙 1甲图中的结构1是乙图中的 ——青夏教育精英家教—— sketch template
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双子叶植物的种子和单子叶植物的种子胚的组成是 A胚芽胚轴和胚根B胚芽胚轴胚根子叶C胚芽胚轴胚根两片子叶D胚芽胚轴 sketch template
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下图为菜豆种子和玉米种子的结构图根据图分析回答问题 菜豆种子和玉米种子结构的相同点是都有 和 而且胚都由 组成不同点是菜豆 sketch template
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种子萌最先突破种皮生长出来的结构是 A．胚轴B．子叶C．胚芽D．胚根——青夏教育精英家教—— sketch template
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下面是植物的有性生殖和育过程示意图请据图回答 1图中的 和 构成了花的雄蕊 21中的 ——青夏教育精英家教—— sketch template
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豌豆的种子有绿色和黄色两种一颗黄色种子萌成的植株进行自花传粉后产生了190颗种子这些种子的颜色及质量分别如下表及直方图所示右图表示豌豆 sketch template
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豌豆的种子有绿色和黄色两种．一颗黄色种子萌成的植株进行自花传粉后产生了190颗种子这些种子的颜色质量分别如下表及直方图如图1所示．图2表示 sketch template
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20．某植物种子的颜色有黄色和绿色之分受多对独立遗传的等位基因控制．现有两个绿色种子的纯和品系定为XY．让XY分别与一纯合的黄色种子的 sketch template
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第七章 裸子植物（Gymnosperm） 植物学 地理教师 sketch template
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20．某植物种子的颜色有黄色和绿色之分受多对独立遗传的等位基因控制．现有两个绿色种子的纯和品系定为XY．让XY分别与一纯合的黄色种子的 sketch template
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题目某植物种子的颜色受A和aB和bD和d三对等位基因控制其遗传遵循自由组合定律同时具备ABD三个基因个体的种子有色否则无色 sketch template
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种子的结构 种子中由胚芽胚轴胚根子叶构成的整体叫做胚胚内有两片子叶的叫做双子叶植物只有一片子叶的叫做单子叶植物双子叶植物一般没有 sketch template
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如图所示为某绿色开花植物生活史示意图请分析回答1在该绿色开花植物的叶片内生着制造有机物的重要生理活动该活动用简式可表示为 ．2 sketch template
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如图为某豆类植物种子的结构示意图．请据图回答1该种子的结构由种皮和胚构成胚的结构包括 胚轴和 ．2 sketch template
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题目图甲ABC分别表示某植物叶片所进行的某些生理活动图甲为该植物在晴朗的夏季一天24小时内吸作用和光合作用的变化曲线．请据图回答 sketch template
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豌豆种子的子叶黄色和绿色分别由基因Y和y控制形状圆粒和皱粒分别由基因R和r控制某实验小组在进行遗传实验过程中用黄色圆粒和绿色圆粒进行杂交 sketch template
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某植物的花的颜色有红色和白色其红花的颜色深浅由三对等位基因控制显性基因有加深红色的作用且作用效果相同具有累积效应完全隐性的各题开白花 sketch template
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如图为某豆类植物种子的结构示意图．请据图回答1该种子的结构由种皮和胚构成胚的结构包括 胚轴和 ．2 sketch template