X-ray crystallography can be used to

Question

BlackTom AI · Accepted Answer

X-ray crystallography is a technique used in structural biology to reveal the three-dimensional arrangement of atoms within a crystallized molecule. 
Option 1: 'determine the three dimensional structure of a protien.' This is the correct purpose of X-ray crystallography: it provides detailed atomic coordinates that describe the 3D structure of the protein. The misspelling 'protiem' is a typographical issue, but the concept aligns with the method's goal. 
Option 2: 'determine the amino acid sequence of a protein.' Determining sequence is typically done by methods like Edman degradation or, more commonly now, mass spectrometry-based proteomics or DNA/RNA sequencing strategies for encoding genes; X-ray crystallography does not yield sequence information directly. 
Option 3: 'determine the nucleic acid sequence of a protein.' This option is conceptually flawed since nucleic acid sequences pertain to DNA or RNA, not proteins, and a protein product does not have a nucleic acid sequence. Moreover, crystallography focuses on the folded protein structure, not its nucleotide sequence. 
Option 4: 'determine the sturcture of a rotating anode X-ray generator.' This describes an X-ray source component, not a biological structure to be determined; crystallography uses X-ray diffraction data collected from crystals, not from characterizing the generator itself. 
In sum, among the choices, the one that aligns with the core application of X-ray crystallography is the determination of the three-dimensional structure of a protein, while the others describe sequence determination or instrument components rather than structural elucidation.

X-ray crystallography can be used to单项选择题

类似问题

X-ray crystallography of DNA produces an image. Which one of the following is the best description of that image?

Which of the following statements best describes a key limitation of X-ray crystallography in determining protein structures?

Name the Supreme Court decision that removed financial constraints on PACs.

Political scientists Joshua Kalla and David Broockman find that senior policy makers made themselves available to _____ between three and four times more often than they did to constituents.

Name the political scientist who argues that parties are designed to serve the needs of ambitious politicians (namely candidates and officeholders).

Name the political scientist who said this famous quote about the problems of pluralism: “The flaw in the pluralist heaven is that the heavenly choir sings with a strong upper-class accent.”

What is the name of the third party candidate in 2000 who was not allowed to participate in the presidential debates? Hint: We watched a video clip with him in class.

E.E. Schattshneider said, "Democracy is ________ save in terms of the parties."

更多留学生实用工具

智能学习助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单