(在真核细胞中(如酵母),DNA复制的如何起始的)相关知识点: 试题来源: 解析 答:酵母的复制起始位点称为自主复制序列(ARS),由一段保守的150bp的序列组成,富含AT碱基对。该区域也被称为A元件(如图)。起始位点识别复合体(ORC)识别A元件,然后依次将解旋酶,引物酶,DNA聚合酶等募集到复制器上。DNA复制进入延伸阶段。
Since DNA is the universal carrier of genetic information, it stands to reason that unicellular organisms as well as the individual cells of multicellular organisms must be able to faithfully replicate their DNA content prior to the production of daughter organisms or daughter cells. DNA replication ...
DNA replication The 2'-deoxyribonucleic acid or DNA is one of the most important molecule for a living organism. It contains a 5-carbon sugar, phosphate and a nitrogenous bases. It has a double stranded structure due to the specific base pairing of the nitrogenous bases.The DNA contains the...
How does a cell initiate DNA replication at an origin and then prevent a second round of replication at that same origin? How does the structure of DNA fit its function, especially as it relates to DNA replication? Explain the role of DNA polymerases in replication. ...
DNA polymerases were named for their function of catalysing DNA replication, a process that is necessary for growth and propagation of life. DNA involving Watson–Crick base-pairing can be synthesized with high fidelity, the structural and mechanistic origins of which have been investigated for many...
百度试题 题目8. How does DNA replication take place in eukaryotes (for example, yeast 相关知识点: 试题来源: 解析反馈 收藏
Hemi-methylated DNA, such as after a fresh round of replication, is also protected from digestion. The restriction endonuclease and modification methylase genes lie adjacent to each other on the host chromosomal or plasmid DNA and may be oriented transcriptionally in a convergent, divergent, or ...
The replication where one of the two strands synthesized remains old and other becomes new is called semi-conservative replication. Matthew Messelson and Franklin Stahl (1958) proved experimentally that DNA Shows semi-conservative replication. They grew
The processes of chromatin disassembly and reassembly during DNA replication also have to be precisely regulated to ensure that the genetic material is compactly packaged to fit into the nucleus while also maintaining the epigenetic information that is carried by the histone proteins bound to the DNA...
DNA replication is a process where an identical copy of the parent strand will be synthesized. This is an important and crucial step since this carries the genetic material for the actively dividing cell. The DNA replication involves enzymes such as Helicase, DNA polymerase, DNA gyrase and DNA ...