31. The diagram shows a cell nucleus in prophase of mitosis.8 Which statement describes the chromosomes found in each daughter nucleus immediately following cell division of this cell by mitosis? B A 8 chromosomes, each consisting of 2 molecules of DNA B 8 chromosomes, each consisting of 1 mo...
节点 nucleus: 原子核 octetrule: 八电子规则 orbital: 轨道 paramagnetism: 顺磁性 Pauliexclusion principle: 泡利不相容原理 periodic table: (元素)周期表 periods: 周期 photon: 光子 positron: 正电子 principal quantum number: 主量子数 proton: 质子 quantum numbers: 量子数 significantfigures: 有效数字 ...
[1]The nucleus of the sperm/male sex cell fuses with the nucleus of the egg/female sex cell.(c) In the diagram below, indicate with an "X" the part of the female reproductive system where the foetus develops.11 相关知识点: 试题来源: 解析 A,D,C,BThe nucleus of the sperm/male sex...
31.. The diagram below shows the stages in the development of a foetus.A BC(a) Based on the diagram above, arrange the stages of the development of the foetus in the correct order.{1]A,D,C,B(b) During fertilization, what must happen to the male and female reproductive cells to ...
29. The diagram below shows a plant cell.chloroplast-cell wall vacuole- cell membrane cytoplasm nucleus.(a)State the function of the cell membrane.[1](b) How can you tell that the plant cell above comes from a leaf? Explain your answer.2} ...
细胞核(nucleus):呈一个折光较强.粘滞性较大的球体。 核膜(nuclear membrane):细胞核最外面的薄膜,与细胞质的分界,核膜在电镜下观察为双 层膜,由外膜与内膜构成;核膜上有许多小孔,称为核孔;核膜上还有核糖核蛋白体。 核质(nucleoplasm):核膜以内均匀透明的胶状物质,核质包括两部分:染色质和核液。 核仁(nucleolus...
Instead of merely drawing an electron dot diagram, let students use buttons to represent them. Provide students with a blank diagram, containing only the nucleus and some empty shells, and let them get to work. At first, they can merely place the correct number of buttons in each shell ...
Of the three DNA polymerases in E.coli, which is essential for DNA replication 真正的复制酶 答:DNA聚合酶Ⅲ 7.Diagram the rolling circle replication mechanism.(图示滚环复制的机制) 答:滚环式复制(rolling circle replication)是噬菌体中常见的DNA复制方式。滚环式复制的 一个特点是以一条环状单链DNA为...
a. the nucleus b. DNA c. the cytoplasm d. endosymbionts e. none of the above 2. Ribosomes. a. are organelles involved in protein synthesis. b. are the cell's main energy source. c. are storage sites for starch d. are involved in the breakdown o 相关推荐》》》 相关试卷 生物专业...
[ˈnukliəs] n.原子核,核心 The nucleus is the center of the atom. [nuˈtrɪʃəs] adj.有营养的,滋养的 Hygienic and nutritious food is the secret to good health. [ˈɑbstək(ə)l] n.障碍,障碍物,妨宿 The runners jump over obstacles. [əˈkɜrəns] n....