DNANucleic Acid ConformationPhysicochemical PhenomenaChemistry, PhysicalThermodynamicsModels, MolecularIt has been shown by model building studies that various right handed and left handed models are compatible with X-ray data of B-DNA and C-DNA. These models are also found to be in good agreement ...
Conformational changes of non-B DNA. In contrast to B-DNA that has a right-handed double helical structure with Watson鈥揅rick base pairing under the ordinary physiological conditions, repetit... Choi,Jungkweon,Majima,... - 《Chemical Society Reviews》 被引量: 132发表: 2011年 Viral Entry an...
Handedness and Age In an interesting experiment with right-handed seniors, researchers found that the subjects relied less and less on their dominant hand the older they got. As their right hands grew slower and unsteady, the elderly people handled some of the tasks just as well with their l...
There is no one gene that determines if we are left- or right-handed; rather, dozens of bits of DNA seem to make small contributions to our handedness, and epigenetic marks, which regulate the expression of our DNA, may also play a ...
牛津大学的一个研究小组 分析了 40 万人的 DNA(脱氧核糖核酸)。然后,他们通过一个基因 “找不同” 游戏对左撇子和习惯用右手的人进行了比较。 They found four genetic instructions that influenced left-handedness. These seem to work by altering how the brain develops. They're involved in building the ...
Imagine that the double helix is a spiral staircase, and you’re walkingdownthe staircase. If you’re turning to the right as you descend, the DNA structure is right-handed; if turning to the left, it’s left-handed. In the image shown earlier, the DNA molecule on the right is a ri...
Mixed sequence DNA can exist in two right-handed and one left-handed double helical conformations—A, B and Z1–3. Under conditions of high water activity ... W Sanr,W Hunr†,O Knnard† - 《Nature》 被引量: 359发表: 1986年 Integrity of duplex structures without hydrogen bonding: ...
根据第一段"Are you right-handed or left-handed?Have you ever wondered why?(你是右撇子还是左撇子?你有没有想过为什么?)"及下文介绍可知,作者在开头用了两个问句是为了引起读者对主题的注意。故选C。(2)B.细节理解题。根据第四段"The University of Oxford research team examined the genomes(基因组)...
I must protest against the knowing groans expended every time a scientist is personally affronted by the image of a left-handed DNA helix (Nature467, 401; 2010). I would remind the groaners that DNA handedness depends on its molecular sequence — witness a seminal paper you published more ...
left handed adj. using or intended for the left hand 同义词:left-handed (of marriages) illicit or informal 同义词:left-handed (of marriages) of a marriage between one of royal or noble birth and one of lower rank; valid but with the understanding that the rank of the inferior remains un...