二倍体生物如果某一对同源染色体多出一条染色体，则称之为“三体”．三体在减数分离第一次分裂联会时，3条同源染色体中的任意2条随意配对联会正常分离 Sketch Coloring Page

二倍体生物如果某一对同源染色体多出一条染色体，则称之为“三体”．三体在减数分离第一次分裂联会时，3条同源染色体中的任意2条随意配对联会正常分离 Template

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sketch #2619 Underwater by sketchmaster

sketchmaster
sketch #2619 Underwater by sketchmaster

sketch #3260 sorry to over comment on your blog .haha. I 'm just flnpiipg through your posts after finding you through the KCWC. Recently I had this huge urge to learn to sketch with black ink pens. This cloud drawing is exactly the thing that I feel the need to put on paper. : )

anonymous

anonymous
sketch #3260 sorry to over comment on your blog .haha. I 'm just flnpiipg through your posts after finding you through the KCWC. Recently I had this huge urge to learn to sketch with black ink pens. This cloud drawing is exactly the thing that I feel the need to put on paper. : )

sketch #3736 Why so serious? by Taï Marsan

anonymous

anonymous
sketch #3736 Why so serious? by Taï Marsan

sketch #4685 Dave Mustaine by Erika Ishikawa

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anonymous
sketch #4685 Dave Mustaine by Erika Ishikawa

sketch #3813

Emin AltınKöprü
sketch #3813

sketch #3604 Falling Manipati Surya

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anonymous
sketch #3604 Falling Manipati Surya

sketch #5327

anonymous

anonymous
sketch #5327

sketch #4653 Kero by Indike Liyanage

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anonymous
sketch #4653 Kero by Indike Liyanage

sketch #3208 ELETR by Raimundo Santos

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anonymous
sketch #3208 ELETR by Raimundo Santos

sketch #2977 Spongebob Germaine Hoens

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anonymous
sketch #2977 Spongebob Germaine Hoens

sketch #4736 Naruto by Wellen Lima

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anonymous
sketch #4736 Naruto by Wellen Lima

sketch #5198 Sakura Claudio Pose Jester Genso

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anonymous
sketch #5198 Sakura Claudio Pose Jester Genso

sketch #141 Sunset

Rachel Roe
sketch #141 Sunset

sketch #4386 Freddie Mercury by Павел Павлов

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anonymous
sketch #4386 Freddie Mercury by Павел Павлов

sketch #4479

Hank Henry Armstrong
sketch #4479

sketch #4555 Mario by Alexander Volodimirovich Danilchenko

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anonymous
sketch #4555 Mario by Alexander Volodimirovich Danilchenko

sketch #5002 Jimi Hendrix by Piter Olimpo

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anonymous
sketch #5002 Jimi Hendrix by Piter Olimpo

sketch #5079 SketchToy Pencil by Sarah Prieto

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anonymous
sketch #5079 SketchToy Pencil by Sarah Prieto

sketch #3250 Lonely cat Lars Tunebo

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anonymous
sketch #3250 Lonely cat Lars Tunebo

sketch #1079

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anonymous
sketch #1079

sketch #5221

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anonymous
sketch #5221

sketch #2055 Flower

Raisa Mahmud
sketch #2055 Flower

sketch #5436

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anonymous
sketch #5436

sketch #5307

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anonymous
sketch #5307

sketch #1122 norooz

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anonymous
sketch #1122 norooz

sketch #4882 Monsters University by John Davis

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anonymous
sketch #4882 Monsters University by John Davis

sketch #5218 Marshall Lee Dj-ionut Manelomania

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anonymous
sketch #5218 Marshall Lee Dj-ionut Manelomania

sketch #5074

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anonymous
sketch #5074

sketch #5326

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sketch #5326

sketch #1724

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anonymous
sketch #1724

tomski二倍体生物如果某一对同源染色体多出一条染色体，则称之为“三体”．三体在减数分离第一次分裂联会时，3条同源染色体中的任意2条随意配对联会正常分离 coloring

二倍体生物如果某一对同源染色体多出一条染色体，则称之为“三体”．三体在减数分离第一次分裂联会时，3条同源染色体中的任意2条随意配对联会正常分离 sketch template

为什么雄蝗虫只有一条性染色体，却还是二倍体生物�？那21三体综合征算几倍体？知乎 sketch template

二倍体 快懂百� sketch template

题目下列对二倍体细胞增殖过程中�生的变化的叙述正确的是A 间期结束细胞中染色体和中心体数目都会加倍B 1个精原细胞经交叉互换后可能 sketch template

染色体检查报�怎么看知乎 sketch template

单亲二体（UPD）是指正常二倍体的体细胞（2n）中某对同源染色体都来自父方或母方的现象。下图表示某种UPD的�生机制：减数分裂出现错误的二体 sketch template

题目图1和图2表示某二倍体生物正在分裂的细胞中出现的染色体行为变化下列叙述正确的是 A图1对应的细胞中一定有同源染色体图2对应的 sketch template

基于NGS Trio的单亲二倍体检测方法及应用与流程 sketch template

如图为某二倍体生物细胞分裂某一时期示意图1234代表染色体aa′bb′代表染色单体如果没有基因突变且不考�同源染色体之间的 sketch template

如图为正在进行分裂的某二倍体生物细胞关于此图的说法正确的是A是次级精母细胞B分裂后每个子细胞均具有生殖功能C该细胞含同源染色体2对 sketch template

下图为某二倍体生物体细胞分裂的模式图下列叙述正确的是 A．乙为初级精母细胞含8条染色单体B．甲处在有丝分裂后期含8条染色体有同源 sketch template

题目下图为某二倍体动物细胞甲在有丝分裂和减数分裂过程中出现的三个细胞乙丙丁有关叙述正确的是A 图中乙细胞正在进行有丝分裂可能 sketch template

15．显微镜下观察到二倍体生物细胞中染色体数为26条则该细胞不可能处在 A．有丝分裂后期 B．有丝分裂中期 C．减数第一次分裂中期 D sketch template

如图示一对同源染色体及其上的等位基因下列说法中错误的是 A．来自父方的染色单体与来自母方的染色单体之间�生了交叉互换 B．B与b的 sketch template

如图表示某二倍体生物正在进行分裂的细胞关于此图的说法正确的是 A．是次级精母细胞处于减数分裂第二次分裂后期 B．含同源染色体2对 sketch template

下图表示某二倍体生物正在进行分裂的细胞关于此图的说法正确的是A是次级精母细胞处于减数分裂第二次分裂后期B含同源染色体2对DNA分子4 sketch template

某生物的体细胞内含有三对同源染色体经减数分裂产生的ABC型配子占配子总数的 A．1／2 B．1／4 C．l／8 D．1／16 题目和参考答案 sketch template

右图是某二倍体生物细胞分裂模式图下列说法正确的是 � 该细胞有可能是次级精母细胞或是次级卵母细胞或是极体 � 该细胞中1与23与4为 sketch template

二倍体生物的下列细胞中含两个染色体组的是 A．胚囊中的细胞 B．囊胚中的细胞 C．极体 D．极核——青夏教育精英家教�—— sketch template

如图A表示某二倍体哺乳动物某器官内连续�生的细胞分裂过程中染色体数目变化曲线图B图C为该过程中一个细胞内部分染色体行为变化的示意图据图 sketch template

题目如图所示为某二倍体生物正在进行分裂的细胞关于此图的说法正确的是 A是次级精母细胞处于减数第二次分裂后期B含同源染色体2对 sketch template

染色体检查报�怎么看知乎 sketch template

染色体和同源染色体的区别是什么百度经验 sketch template

某二倍体生物的分裂后期的正常细胞内含有10个DNA分子下列说法正确的是 A．该细胞可能处于减数第一次分裂后期 B．该细胞可能处于 sketch template

同源染色体 搜狗百� sketch template

如图是二倍体生物的一个细胞示意图对下图的叙述中不正确的是 A．�是一个染色体包含两个染色单体��两个染色单体由一个着丝点�相连B sketch template

题目如图甲是某二倍体生物体细胞染色体模式图A F是细胞�生变异后的染色体组成模式图据图回答1图中A F显示�生染色体变异的是 sketch template

基因型为AaBb两对等位基因分别位于两对同源染色体上的一个初级精母细胞和一个初级卵母细胞正常情况下分别产生的精子和卵细胞基因型的种类数比为 sketch template

下图表示一对同源染色体及其上的等位基因下列说法中不正确的是 A．A与a的分离仅�生在减数第一次分裂B．来自父方的染色单体与来自母方的染色单体 sketch template

对下列四幅图的描述正确的是 A．图1中含两个染色体组l与23与4为同源染色体 B．在适宜的温度水肥等条件下适当增加光照强度图 sketch template

11．某细胞中有两对基因分别位子两对染色体上下图图解正确的是——青夏教育精英家教�—— sketch template

如图表示某二倍体生物一对同源染色体上的部分基因以下说法正确的是 A．图中共存在4对等位基因B．图中所示基因在染色体上�线性排列C．图中 sketch template

DNA、基因、染色体三者间的关系究竟如何？知乎 sketch template

如图为某精原细胞分裂过程中的一对同源染色体及其等位基因下列说法错误的是 A．�和�之间�生了交叉互换 B．该细胞可能来自二倍体动物 C．A与 sketch template

三倍体 快懂百� sketch template

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