• Sketchite
Sketchite

20．水稻是自花传粉植物水稻的高茎对矮茎是显性判断高茎是否是纯合体最经济最合理的方法是 A．测交 b．测交和自交 c．自交 D．无需测交 Template






Link:
sketch 4160
sketch 5347
sketch 5236 Edward Scissorhands by Ronin Ronin
sketch 1669
sketch 5175
sketch 672 Snails pace
sketch 3339 Sasuke by Jean-Benoit Renaud
sketch 1153 sahib

You need a modern browser try chrome, to view this.
Background image: Hide Show

View Larger Image Image Credit: 1010jiajiao.com

sketch 1116
sketch 5008
sketch 2308
sketch 4907
sketch 5058
sketch 2753
sketch 1545
sketch 4724 Turtwig by Mark Robson





Try and sketch some of theseSteam engine, Horse, Gravy, Yeti, Amusement park, Clarinet, Elevator, Rice, Garden, Candy , view more ideas


please wait, the page is loading...

More Sketches

Take a peek at some of the sketches created by our users, are you a sketchite?
view like
sketch #5115
anonymous
anonymous
sketch #5115

view like
sketch #4632
anonymous
anonymous
sketch #4632

view like
sketch #5185
anonymous
anonymous
sketch #5185

view like
sketch #1724
anonymous
anonymous
sketch #1724

view like
sketch #3683 Hellboy by Loai Issa
anonymous
anonymous
sketch #3683 Hellboy by Loai Issa

view like
sketch #2025
anonymous
anonymous
sketch #2025

view like
sketch #2178
anonymous
anonymous
sketch #2178

view like
sketch #1385 fingerschpitsengeful
anonymous
anonymous
sketch #1385 fingerschpitsengeful

view like
sketch #5094 Squirrel by Mehdi Público
anonymous
anonymous
sketch #5094 Squirrel by Mehdi Público

view like
sketch #4287 eye
anonymous
anonymous
sketch #4287 eye

view like
sketch #3708
anonymous
anonymous
sketch #3708

view like
sketch #5209
anonymous
anonymous
sketch #5209

view like
sketch #3148
anonymous
anonymous
sketch #3148

view like
sketch #4659 Ozzy Osbourne by Piter Olimpo
anonymous
anonymous
sketch #4659 Ozzy Osbourne by Piter Olimpo

view like
sketch #5312
anonymous
anonymous
sketch #5312

view like
sketch #4829
anonymous
anonymous
sketch #4829

view like
sketch #389
anonymous
anonymous
sketch #389

view like
sketch #3693 Lucy from Elfen Lied by Simona Honigmelone
anonymous
anonymous
sketch #3693 Lucy from Elfen Lied by Simona Honigmelone

view like
sketch #3727 Stitch by Louis Tradieu
anonymous
anonymous
sketch #3727 Stitch by Louis Tradieu

view like
sketch #4918 Mike Wazowsky by George Andres Crowther Castillo
anonymous
anonymous
sketch #4918 Mike Wazowsky by George Andres Crowther Castillo

view like
sketch #5084 Harry Potter by Enrique L. Manly
anonymous
anonymous
sketch #5084 Harry Potter by Enrique L. Manly

view like
sketch #879
Laura Agapi Asnicar
sketch #879

view like
sketch #4661 Woodpecker by Hsien-Ying Hsieh
anonymous
anonymous
sketch #4661 Woodpecker by Hsien-Ying Hsieh

view like
sketch #3388 Fight Club by Alvaro Velasquez
anonymous
anonymous
sketch #3388 Fight Club by Alvaro Velasquez

view like
sketch #3742 Homer by Koes Maung
anonymous
anonymous
sketch #3742 Homer by Koes Maung

view like
sketch #5070 The Rolling Stones by Roby Krdoso
anonymous
anonymous
sketch #5070 The Rolling Stones by Roby Krdoso

view like
sketch #779 Gol D Roger
Benjo Arellano
sketch #779 Gol D Roger

view like
sketch #5259
anonymous
anonymous
sketch #5259

view like
sketch #2279 puppetsss
anonymous
anonymous
sketch #2279 puppetsss

view like
sketch #5215
anonymous
anonymous
sketch #5215

tomski20．水稻是自花传粉植物水稻的高茎对矮茎是显性判断高茎是否是纯合体最经济最合理的方法是 a．测交 b．测交和自交 coloring
view template
杂交水稻和转基因水稻的区别 百度知道 sketch template
view template
传粉媒介 360百 sketch template
view template
杂交水稻小普 知乎 sketch template
view template
自花传粉图册 360百 sketch template
view template
水稻幼穗分化育5120 Word文档在线阅读与下载 无忧文档 sketch template
view template
水稻叶鞘托叶鞘和叶鞘水稻 文秘图库 sketch template
view template
98、水稻根系包括哪幾種？其生長和分布有哪些規律？ 每日頭條 sketch template
view template
花粉成熟后从花药落到 上的过程称为传粉．A．花瓣B．花柱C．柱头D．子房 题目和参考答案——青夏教育精英家教—— sketch template
view template
中院普：转玉米基因的水稻 风闻 sketch template
view template
水稻花为两性花风媒传粉花小杂交育种工作量巨大．水稻的紫叶鞘对绿叶鞘完全显性受一对等位基因控制．现有紫叶鞘两个纯系水稻品种将甲乙两种 sketch template
view template
们日常食用的大米主要是水稻种子结构中的 A胚芽 B胚根 C子叶 D胚乳——青夏教育精英家教—— sketch template
view template
如图所示自花传粉是指花粉落到同一朵花的柱头上异花传粉是指花粉依靠外力落到另一朵花的柱头上．小强在学习了传粉和果实种子形成的知识后产生了 sketch template
view template
玉米是常见的遗传实验材料．图一为玉米的传粉示意图图二是不同的传粉方式．1图一玉米的传粉方式是异花传粉填“自花传粉 “异花传粉 或“自 sketch template
view template
【初中生物初中生物专题知识点：绿色植物的六大器官 知乎 sketch template
view template
杂交水稻小普 知乎 sketch template
view template
第四章 种子植物的繁殖和繁殖器官14 植物学 地理教师 sketch template
view template
玉米的性状中黄对白非甜对甜为显性两种性状独立遗传．让纯合的黄色非甜玉米与白色甜玉米杂交得到F1再让F1自交得到F2若在F2中有黄色 sketch template
view template
玉米是一种雌雄同株植物下表表示5个玉米纯系的表现型相应的基因型及基因所在的染色体其中 品系均只有一个性状属隐性其他性状均为显性 sketch template
view template
自花传粉率最高的植物是 A．棉花B．小麦C．豌豆D．水稻——青夏教育精英家教—— sketch template
view template
水稻花为两性花风媒传粉花小杂交育种工作量巨大．水稻的紫叶鞘对绿叶鞘完全显性受一对等位基因控制．现有紫叶鞘两个纯系水稻品种将甲乙两种 sketch template
view template
水稻是单子叶植物为国主要的粮食作物之一下列有关水稻生活动的叙述正确的是 A．对水稻进行根瘤菌拌种有利于水稻对N2的作用 B．水稻 sketch template
view template
传粉以后花粉受到柱头分泌的粘液的刺激萌形成花粉管花粉管沿着花柱子房生长花粉管内产生2粒精子——青夏教育精英家教—— sketch template
view template
玉米是遗传实验经常用到的材料在自然状态下花粉既可以落到同一植株的柱头上也可以落到其他植株的柱头上请回答下列有关问题 1请列举玉米 sketch template
view template
一种构建水稻表观重组自交系的方法 sketch template
view template
杂交水稻小普 知乎 sketch template
view template
如图图一为玉米的传粉示意图图二为玉米的结构模式图请据图回答1玉米的花从花蕊的情况分析是 图一中玉米的传粉方式是 ．若在传粉时节正好 sketch template
view template
百度教育 sketch template
view template
百度教育 sketch template
view template
【初中生物初中生物专题知识点：绿色植物的六大器官 知乎 sketch template
view template
20．水稻是自花传粉植物水稻的高茎对矮茎是显性判断高茎是否是纯合体最经济最合理的方法是 A．测交 B．测交和自交 C．自交 D．无需测交 sketch template
view template
水稻的非糯性和糯性是一对相对性状由一对等位基因控制请据图回答下列问题1据图可知显性性状是 ．X的基因型是 ．2F1非糯性水稻自 sketch template
view template
“春花秋实 是自然界的基本规律．请根据下图回答问题1图甲表示的传粉方式是异花传粉．2玉米开花季节如果遇到连阴雨天会造成减产．你认为 sketch template
view template
题目下图是被子植物繁殖过程的示意图请根据所学的知识回答相关问题1花在植物体的结构层次上属于 其结构中 与果实和种子的形成有直接 sketch template
view template
如图为豌豆人工异花授粉的过程图解请仔细阅图后回答下列问题1因为豌豆具有自花传粉闭花授粉特征所以进行人工异花传粉需进行如图所示的操作 sketch template
view template
如图是豌豆人工杂交示意图请回答下列有关问题 1豌豆为自花传粉闭花授粉的植物若要实现甲乙杂交需在花蕾期对甲进行 并套袋隔离其 sketch template