B A 8 chromosomes, each consisting of 2 molecules of DNA B 8 chromosomes, each consisting of 1 molecule of DNA C 4 chromosomes, each consisting of 4 chromatids D 4 chromosomes, each consisting of 2 chromatids 相关知识点: 试题来源: 解析 B 反馈 收藏 ...
The Hamiltonian is modified to incorporate the solvent effect and the presence of these cations in the solution. We calculate the melting temperature as well as the critical force that is required to unzip the DNA molecule as a function of salt concentration of the solution. The phase diagrams ...
Until now, the closest antecedent to a wiring diagram of the whole brain has been the reconstruction of a fly ‘hemibrain’1, a pioneering resource that has already become indispensable toDrosophilaresearchers. It is estimated to contain around 20,000 neurons that are ‘uncropped’—that is, mi...
2.6.A1Crick and Watson’s elucidation of the structure of DNA using model making. DNA分子有两条方向平行(antiparallel)的多核苷酸链组成,中间的碱基依靠氢键联系在一起,形成特殊的双螺旋结构。A与T以两个氢键结合(RNA中是A和U),G与C以三个氢键结合,这种结合方式叫碱基互补配对(complementary base pairing)(...
The nanopores only allow the passage of single-stranded DNA in a linear sequence. This method provides real-time analysis and can sequence nucleotides from short to ultra-long reads. Single-molecule detection methods like nanopore sequencing are included in the third generation of sequencing technologi...
Every protein that was detected was included regardless of how low the expression counts were, with the exception of highly polymorphic proteins such as HLA-A. Second, we added all proteins with a designated CD number as of the 10th human cell differentiation molecule workshop56. The amino ...
protein synthesis serves as a method to produce proteins for the body. The process occurs in a few stages. First, the genetic code is copied from DNA in the nucleus to a molecule called mRNA. Then, transcription and translation will occur and with the help of aribosome, a protein is ...
In chemical terms, photosynthesis is a light-energizedoxidation–reduction process. (Oxidation refers to the removal ofelectronsfrom a molecule;reductionrefers to the gain of electrons by a molecule.) In plant photosynthesis, the energy of light is used to drive the oxidation of water (H2O), pro...
Fig: Structure of DNA ModelProperties of DNAi. DNA helices can be right-handed or left-handed. But the B –conformation of DNA having the right-handed helices is the most stable and common type.ii. Denaturation of DNA: If a DNA molecule is exposed to a high temperature or titration ...
This process begins with the unwinding of the DNA molecule into single strands so that the enzymes and nucleotides participating in transcription have room to move to the scene. Then, along one of the DNA strands, a strand of mRNA is assembled with the help of the enzyme RNA polymerase. Thi...