百度试题 结果1 题目Which of the following is a characteristic of eukaryotic cells? A. Lack of a nucleus B. Presence of a nucleus C. Circular DNA D. Absence of organelles 相关知识点: 试题来源: 解析 B 反馈 收藏
The cells that contain a nucleus covered by a nuclear membrane and undergo complex reactions to carry over their life are called eukaryotic cells. The genetic material of eukaryotes is organized in chromosomes, which inherit information to the next generation and translate the information for prote...
To determine which type of cell, prokaryotic or eukaryotic, has a shorter cell division time, we can follow these steps:1. Understand the Types of Cells: - Prokaryotes are simple cells without a nucleus, such as bacteria.
1. What are cells with an enclosed nucleus called? What are the main elements of the nucleus? 2. Do all eukaryotic cells have only one nucleus? Which types of cells lack(s) a nucleus? What is a cell? What are the functions of a cell? What makes cells different from each other...
In eukaryotic cells, DNA replication occurs during the S-phase of the cell cycle. During S-phase, RNA transcription and protein translation are largely limited to the production of histone mRNAs and proteins, thereby decreasing the likelihood that DNA polymerase will encounter RNA polymerase. In ...
百度试题 结果1 题目Which organelle is responsible for the production of ATP in eukaryotic cells? A. Mitochondria B. Endoplasmic reticulum C. Nucleus D. Golgi apparatus 相关知识点: 试题来源: 解析 A 反馈 收藏
Why human tumors grow infiltrated by specific antitumor T cells has been a mystery attributed to negative factors released directly by the tumor or indirectly through immune intermediaries. The frequency and phenotype of myeloid-derived suppressor cells in the peripheral blood of melanoma patients and ...
The present invention relates to methods for lyophilizing eukaryotic cells and isolating intact nucleic acids from such cells, and related kits for using the same.Ching-I Patsy LinRobert Bruce WallaceJeffrey CossmanCynthia FrenchUSUS6071745 * 1997年6月27日 2000年6月6日 Bio-Rad Laboratories ...
The mRNAs which transcribed from two complementary strands of DNA template are the same. B. One structural gene usually can be transcribed to two mRNAs. C. In eukaryotic cells, some sequences included within the gene may not exist in its corresponding mature mRNA. D. In eukaryotic cells, ...
aHowever, those studies were conducted under nonilluminated conditions and focused primarily on eukaryotic cells,which suggest two questions about the potential ecotoxicity of nano-TiO2. 然而,那些研究进行了下nonilluminated情况并且集中主要于eukaryotic细胞,建议关于nano-TiO2潜在的ECO毒性的二个问题。 [...