What is the structure and function of DNA? Which element acts as the backbone of nucleic acids? What is DNA composed of? (a) What is the composition of a DNA fragment? (b) What is a DNA fragment made of? 1. What is the composition of a DNA fragment? 2. What is a DNA fragment...
The backbone of DNA is built of repeating sugar–phosphate units, and bases such as ( )A.adenineB.cytosineC.guanineD.thymine的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的工具.一键将文档转化为在线题库手机
physiological models/ backbone structureDNAbiological polaritydynamic structures/ A8715B Biomolecular structure, configuration, conformation, and active sitesA model for the biological polarity of DNA is presented and speculations about dynamic structures in biological systems are exposed....
Nucleic acids are chains of 5-carbon sugars linked by [{Blank}] bonds with an organic base protruding from each sugar. A) amino B) phosphodiester C) carboxyl D) phosphate What sugar is used in the backbone of DNA molecules? DNA molecules in the...
GajA is an OLD nucleases family protein, while GajB belongs to the SF1 helicases. The Gabija complex has sequence-specific DNA nuclease activity and prefers circular rather than linear DNA as substrate, its activity is more sensitive to concentrations change of nucleotides compared to GajA alone....
The engagement of a DNA glycosylase with a damaged DNA base marks the initiation of base excision repair. Nucleosome-based packaging of eukaryotic genome obstructs DNA accessibility, and how DNA glycosylases locate the substrate site on nucleosomes is cu
This appears to be a direct contribution as the crystal structure of the FV10 dimer is similar to wild type and the Phe-10-DNA backbone interactions are the only contacts perturbed in the cocrystal structure of the FV10-operator complex. 展开 ...
High-speed replication of chromosomal DNA requires the DNA polymerase to be attached to a sliding clamp (known as proliferating cell nuclear antigen, or PCNA, in eukaryotes) that prevents the polymerase from falling off DNA [1,2]. In all cells and in some viruses, the clamp is a ring-shap...
Gonadotrophin-releasing hormone (GnRH), also known as luteinizing hormone-releasing hormone, is the main regulator of the reproductive system, acting on gonadotropic cells by binding to the GnRH1 receptor (GnRH1R). The GnRH-GnRH1R system is a promising therapeutic target for maintaining reproductive...
The backbone of DNA computing is DNA hybridization, which is also the source of errors. To mitigate the errors in DNA computing, often, we require sufficiently dissimilar DNA strands (called DNA codes) that satisfy certain constraints, such as the Hamming distance constraint, the GC-content ...