Animal cells do not have___. A. a nucleus B. a cell wall C. mitochondria D. cytoplasm 相关知识点: 试题来源: 解析 B。动物细胞没有细胞壁。选项 A 细胞核动物细胞有;选项 C 线粒体动物细胞有;选项 D 细胞质动物细胞有。本题考查动物细胞和植物细胞的区别以及词汇掌握。反馈...
百度试题 结果1 题目Animal cells do not have a ___. A. cell membrane B. nucleus C. chloroplast D. mitochondria 相关知识点: 试题来源: 解析 C。动物细胞没有叶绿体(chloroplast)。动物细胞有细胞膜、细胞核和线粒体等。反馈 收藏
The plant cell has a cell wall, chloroplasts, plastids, and a central vacuole—structures not in animal cells. Most cells do not have lysosomes or centrosomes. If the nucleolus were not able to carry out its function, what other cellular organelles would be affected? The Plasma Membrane Like...
However, red blood cells (RBCs), which do not contain a nucleus, and cannot perform transcription or translation, nonetheless exhibit circadian redox rhythms. Here we show human RBCs display circadian regulation of glucose metabolism, which is required to sustain daily redox oscillations. We found ...
Thus, in si ninein lineages, parent cells do not have a statistically detectable influence on the diversity of the cell cycle durations of their progeny cells, when focusing on relative outlier cells. This suggests that the significant propagation result obtained for the si non-target lineages is...
(hpf)). To obtain sensitive quantitation of key mRNA expression, we used the NanoString platform and a set of 45 genes, focused on those known or suspected to have important roles in melanocyte or iridophore fate specification and commitment, but including multiple markers of early NCCs, plus...
Conclusion Selected nest in positive cells derived from human fetal pancreas have certain characteristics of MSCs. 结论筛选纯化的胎儿胰腺来源的巢蛋白阳性细胞具有一定间充质干细胞的特性。 www.ceps.com.tw 5. Compared with the experimental group, weaker staining and fewer bFGF positive cells were observ...
百度试题 结果1 题目 Platelets are not considered to be true cells since they have no nucleus, ribosomes or mitochondria.( ) 相关知识点: 试题来源: 解析 错误 反馈 收藏
The first, referred to as the steady-state model, assumes (1) constant rates of transcription and degradation of RNA; (2) a single, global splicing rate8,10; (3) that the cellular dynamics reached an equilibrium in the induction phase and do not include basal transcription; and (4) gene...
2d)43,44. Conversely, Paride is not related to well-studied P. aeruginosa jumbo phage phiKZ which famously forms a “phage nucleus” in infected cells45 but cannot replicate on dormant hosts (Figs. 1c and S3a, b), and belongs to an entirely different clade of large microbial viruses42....