• 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 1041 strawberries
sketch 5349
sketch 4661 Woodpecker by Hsien-Ying Hsieh
sketch 5347
sketch 3950
sketch 4436 Bob Marley by Luiza Irma
sketch 312
sketch 3670 Bugs Bunny by Jessica Column

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

View Larger Image Image Credit: 1010jiajiao.com

sketch 5323 Cem Adrian by Glynis June Williams
sketch 4362 cow
sketch 3680 Infected Mushroom by Rohit Rahul
sketch 3510 Edward from FMA by Raman Chauhan
sketch 687 Buddha Peace
sketch 3381 DBZ by Adidtzu Ady
sketch 2072
sketch 1448 donara





Try and sketch some of theseRibbons, Treasure, Earrings, Motor, Maid, Aircraft carrier, Poker, Bikini, Loafers, Poet, 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 #5306 Katarina by Mirnes Sinanovic
anonymous
anonymous
sketch #5306 Katarina by Mirnes Sinanovic

view like
sketch #5064
anonymous
anonymous
sketch #5064

view like
sketch #3036 Wiz Khalifa by Malyi Link
anonymous
anonymous
sketch #3036 Wiz Khalifa by Malyi Link

view like
sketch #1260
anonymous
anonymous
sketch #1260

view like
sketch #288 RK
anonymous
anonymous
sketch #288 RK

view like
sketch #2283 Head in a shoe
anonymous
anonymous
sketch #2283 Head in a shoe

view like
sketch #4979 Luffy
anonymous
anonymous
sketch #4979 Luffy

view like
sketch #4895 Cat by Gaurav Patel
anonymous
anonymous
sketch #4895 Cat by Gaurav Patel

view like
sketch #5151
anonymous
anonymous
sketch #5151

view like
sketch #3581 Dante
anonymous
anonymous
sketch #3581 Dante

view like
sketch #4953 Bird by Ervin Haxhija
anonymous
anonymous
sketch #4953 Bird by Ervin Haxhija

view like
sketch #1711
anonymous
anonymous
sketch #1711

view like
sketch #270
anonymous
anonymous
sketch #270

view like
sketch #5225 The Friendship by Annabelle Bourget
anonymous
anonymous
sketch #5225 The Friendship by Annabelle Bourget

view like
sketch #3192 Snake by Isaias Valenzuela Chaver
anonymous
anonymous
sketch #3192 Snake by Isaias Valenzuela Chaver

view like
sketch #895
anonymous
anonymous
sketch #895

view like
sketch #4874 Milla Jovovich by Kimmy Kitty Perry Priemus
anonymous
anonymous
sketch #4874 Milla Jovovich by Kimmy Kitty Perry Priemus

view like
sketch #2025
anonymous
anonymous
sketch #2025

view like
sketch #5263
anonymous
anonymous
sketch #5263

view like
sketch #804
Laura Agapi Asnicar
sketch #804

view like
sketch #3484 Red Hot Chili Peppers by Nik Zulqarnain
anonymous
anonymous
sketch #3484 Red Hot Chili Peppers by Nik Zulqarnain

view like
sketch #3786
anonymous
anonymous
sketch #3786

view like
sketch #3822
anonymous
anonymous
sketch #3822

view like
sketch #4769 Finn and Jake by Neo Ʀazor
anonymous
anonymous
sketch #4769 Finn and Jake by Neo Ʀazor

view like
sketch #3273
anonymous
anonymous
sketch #3273

view like
sketch #4887 Jessica Rabbit by Garima Taneja
anonymous
anonymous
sketch #4887 Jessica Rabbit by Garima Taneja

view like
sketch #4522 Adventure Time by KiNg Buamir
anonymous
anonymous
sketch #4522 Adventure Time by KiNg Buamir

view like
sketch #4691 Itachi by Jaqueline Salazar
anonymous
anonymous
sketch #4691 Itachi by Jaqueline Salazar

view like
sketch #2573 homer simpson
anonymous
anonymous
sketch #2573 homer simpson

view like
sketch #5078 Naruto by Shimun Yeyo Ahmed
anonymous
anonymous
sketch #5078 Naruto by Shimun Yeyo Ahmed

tomski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 coloring
view template
自花传粉图册 360百 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
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
杂交水稻小普 知乎 sketch template
view template
竹子、水稻杂交成竹稻 可长到2米 亩产千公斤、20元1斤 学探索 CnBetaCOM sketch template
view template
传粉媒介 360百 sketch template
view template
水稻叶鞘托叶鞘和叶鞘水稻 文秘图库 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
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
传粉和受精1传粉是指花粉花粉从花药里散出来通过一定的方式落到雌蕊柱头雌蕊柱头上的过程．分为自花传粉自花传粉和异花传粉异花传粉两种方式 sketch template
view template
史上最全的植物形态图解，值得珍藏！ 结构 sketch template
view template
植物的传粉方式分为自花传粉自花传粉和异花传粉异花传粉． 题目和参考答案——青夏教育精英家教—— sketch template
view template
杂交水稻小普 知乎 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
百度教育 sketch template
view template
百度教育 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
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
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
题目玉米是遗传学上常见的材料玉米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等位基因可以改变玉米的 sketch template
view template
番茄花解剖图 千图 sketch template
view template
许多纯种高茎豌豆自花传粉而生成的后代很可能有 A100%高茎B25%高茎C50%高茎D25%矮茎 题目和参考答案——青夏教育精英 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
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甜玉米甲非甜玉米乙两个品种的玉米 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
玉米是一种雌雄同株的植物其顶部开雄花下部开雌花玉米黄粒和白粒是一对相对性状将纯种黄粒和白粒玉米间行种植收获时所得玉米粒如下表 所结 sketch template
view template
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
view template
下图表示某种植物的传粉过程该植物的花及传粉方式是 A．两性花自花传粉B．单性花异花传粉C．两性花异花传粉D．单性花自花传粉 sketch template
view template
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
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
题目下图示植物茎与运输有关的两种管箭头表示所运输物质的运送方请据图回答1为 为 2AB分别代表那种物质A B sketch template
view template
如图是植物传粉模式图据图回答问题1如图所示该植物的传粉方式是 ．2当花粉落到雌蕊的柱头上受到柱头上分泌的粘液刺激开始萌长出 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