with a phosphate and a base (or nucleobase) attached to it. These nucleotides are attached to each other in strands viaphosphodiester bondsto form a ‘sugar-phosphate backbone’. The bond formed is between the third carbon atom on the deoxyribose sugar of one nucleotide (known as the ...
The studies of structure and physical properties of DNA triplex with a tight-turn on sugar-phosphate backbone and with imperfect base-triads緊彎DNA三螺旋不完整配對DNA三螺旋Triple-stranded nucleic acid helix is well recognized since its discovery in 1957. Ever since, there has been growing interest...
百度试题 结果1 题目DNAsecondarystructureisaright-handeddoublehelixwithasugarphosphatebackboneontheoutsideandpairedbases(A-T,G-C)ontheinside.Whichofthefollowingaretrue?相关知识点: 试题来源: 解析 Thetwostrandsareantiparallel.反馈 收藏
one step. Instead, entire genes are synthesized in double-stranded fragments. The fragments are then overlapped and annealed. Any missing nucleotides are filled in using the enzyme DNA polymerase I. Any nick (missing a phosphodiester bond) in the sugar-phosphate backbone, is sealed using DNA ...
To modulate the topology of the DNA, topoisomerases start by nicking the sugar-phosphate backbone of the DNA, establishing a covalent bond with the DNA. From this nicked intermediate, either a strand passage takes place with a DNA strand passing through the break or a controlled rotation occurs...
Nucleotides on each DNA strand are joined by covalent bonds, which form between the sugar of one nucleotide and the phosphate of the next nucleotide, forming a sugar phosphate backbone. The two DNA strands are joined by hydrogen bonds that bind adenine with thymine and cytosine with guanine in...
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
Each strand has a sugar phosphate backbone linked from the 5′ and 3′ carbon atoms of deoxyribose. At the end of a strand is either a 5′ phosphate group (5′ end) or a 3′ phosphate group (3′ end). One strand of DNA (sense-strand) contains the genetic information in a 5′ ...
4.5Å. The potential also considers whether the contact occurs through the phosphate, sugar, pyrimidine, orimidazolegroups. This approach performed better than classical sequence homology-based approaches (i.e., PSI-BLAST;Altschul et al., 1997). An improved version of the previous method, DBD-...
Genomic DNAis highly susceptible to damage caused by various endogenous and environmental factors, such asreactive oxygen species, radiation, and chemical compounds. The most frequent types of DNA damage involve chemical modification or loss ofnucleobases. Because the phosphate-sugar backbone often remains...