2020 发育生物学(福建农林大学) 最新满分章节测试答案
本答案对应课程为:点我自动跳转查看
本课程起止时间为:2020-03-16到2020-08-31
本篇答案更新状态:已完结
第二章 基本概念 第二章测试
1、 问题:Which of the following is a germ cell?
选项：
A:cells of the gonads
B:intestinal cells
C:sperm and eggs
D:zygotes
答案: 【sperm and eggs】
2、 问题:Which of the following basic developmental processes is most dependent on cellular movements?
选项：
A:cell differentiation
B:growth
C:morphogenesis
D:pattern formation
答案: 【morphogenesis】
3、 问题:A morphogen is
选项：
A:a cell or group of cells that signal other cells to become determined in a specific way
B:a gene that causes a cell or group of cells to adopt a particular shape
C:a signaling molecule that causes the differentiation of neighboring cells
D:a signaling molecule that confers concentration-dependent positional information
答案: 【a signaling molecule that confers concentration-dependent positional information】
4、 问题:What distinguishes stem cells from other cell types?
选项：
A:Although all cell types can divide, only stem cells differentiate after division.
B:Stem cells are able to divide to produce populations of cells that differentiate into a related set of cells.
C:Stem cells divide asymmetrically to give rise to one daughter cell that remains a stem cell, and a second daughter cell that differentiates into one or more cell types.
D:Stem cells have a special type of cell division in which they form small stems that then pinch off to give rise to the daughter cell.
答案: 【Stem cells divide asymmetrically to give rise to one daughter cell that remains a stem cell, and a second daughter cell that differentiates into one or more cell types.】
【作业】第二章 基本概念 第二章作业
1、 问题:The Greek philosopher Aristotle considered two opposing theories for development: preformation and epigenesis. Describe what is meant by these two ideas.
评分规则: 【 先成论包括古典先成论和改良先成论：古典先成论：胚胎中的一切都是从一开始就形成的，仅在发育过程中逐渐长大；改良先成论：除遗传子外，没有其它任何东西。后成论：胚胎中的新结构是逐渐形成的。现代细胞生物学奠定了“后成论”的基础：生殖细胞和胚胎细胞的相互作用，包括直接接触和信号传递，通过调控基因的差异化表达，调控了了细胞增殖、迁移、分化，导致了细胞的差别分化。
】
2、 问题:The Greek philosopher Aristotle considered two opposing theories for development: preformation（先成论） and epigenesis（后成论）. Describe what is meant by these two ideas.
评分规则: 【 先成论包括古典先成论和改良先成论：古典先成论：胚胎中的一切都是从一开始就形成的，仅在发育过程中逐渐长大；改良先成论：除遗传子外，没有其它任何东西。后成论：胚胎中的新结构是逐渐形成的。现代细胞生物学奠定了“后成论”的基础：生殖细胞和胚胎细胞的相互作用，包括直接接触和信号传递，通过调控基因的差异化表达，调控了了细胞增殖、迁移、分化，导致了细胞的差别分化。
】
第三章 脊椎动物生命周期和发育概要 第三章测试
1、 问题:Which of the following is a vertebrate ‘model organism’ used in the study of development?
选项：
A:Drosophila melanogaster
B:Homo sapiens
C:Caenorhabditis elegans
D:Xenopus laevis
答案: 【Xenopus laevis】
2、 问题:The nervous system, heart, and liver are derived from ( ), ( ), and ( ), respectively.
选项：
A:all are derived from mesoderm
B:ectoderm, mesoderm, and endoderm
C:endoderm, mesoderm, and ectoderm
D:mesoderm, ectoderm, and endoderm
答案: 【ectoderm, mesoderm, and endoderm】
第五章 胚层来源和特化 第五章测试
1、 问题:If cells from the animal pole of a Xenopus blastula (animal cap cells) are placed in direct contact with cells from the vegetal region, what is the result?
选项：
A:An embryo forms with only ectodermal and endodermal derivatives.
B:Animal cap cells are induced by the vegetal cells to form meso dermal derivatives.
C:The embryo regulates and forms a normal embryo.
D:Vegetal hemisphere cells are induced by the animal cap cells to form mesodermal derivatives.
答案: 【Animal cap cells are induced by the vegetal cells to form meso dermal derivatives.】
2、 问题:Vg-1, Nodals, BMPs and activin are all members of which family of signaling molecules?
选项：
A:FGF
B:Hedgehog
C:TGF-β
D:Wnt
答案: 【TGF-β】
3、 问题:The Brachury protein is
选项：
A:an early marker of the mesoderm
B:an early marker of the endoderm
C:expressed throughout the ectoderm
D:only expressed after gastrulation
答案: 【an early marker of the mesoderm】
4、 问题:Endoderm and mesoderm are specified in the zebrafish blastoderm by
选项：
A:signals from the shield region
B:maternal signaling molecules laid down in the egg
C:a gradient of β-catenin signaling
D:a gradient of Nodal signaling
答案: 【a gradient of Nodal signaling】
第六章 体节 第六章测试
1、 问题:Somites will give rise to
选项：
A:heart and blood
B:internal organs of the abdomen
C:the vertebral column and skeletal muscles
D:the spinal cord
答案: 【the vertebral column and skeletal muscles】
2、 问题:Somite formation in chicks proceeds
选项：
A:from anterior to posterior, as Hensen’s node retreats
B:from posterior to anterior, as the primitive streak elongates
C:from the dorsal midline outward, into lateral plate
D:simultaneously along the axis
答案: 【from anterior to posterior, as Hensen’s node retreats】
3、 问题:Hox genes that are expressed more anteriorly comprise Hox genes
选项：
A:with all possible numbers and letters, since there is no system tic relationship between the gene designations and the expression patterns of the Hox genes
B:with higher numbers, such as Hoxa13
C:with letters, so that anterior genes are Hoxa1-13, and posterior genes are Hoxp1-13
D:with lower numbers, such as Hoxa1.
答案: 【with lower numbers, such as Hoxa1.】
4、 问题:Neural crest cells will contribute to which tissues or structures?
选项：
A:melanocytes in the skin
B:mesoderm of the face and skulll
C:peripheral nervous system
D:all of these
答案: 【all of these】
【作业】第六章 体节 第六章作业
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