[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fVJM9nQzG4OwDXiF28pbPiT01fYiI3kpovqiHu6X6oyo":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-04-26 19:45:09",184745195,[8,9,10,11],"Leu","Lys","Arg","His",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},125,"ecb63186fd2348dd972900f765a15722","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe91b8b9d3b83a0d6a9d655b826214095.jpg","Biochemistry 《生物化学》一 专业基础课（全英教学）","e9ae3d8bd84d4fb4a587a369705d2aad","Test 3 - Lecture 3","The one-letter code for 20 amino acids was devised by Margaret Oakley Dayhoff, considered by many to be the founder of the field of bioinformatics. K is ________",[21,32,41,46,55,64,73,82,89,94],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],184745186,[25,26,27,28],"mass or 3D structure","mass or charge","3D structure or charge","mass or 2D structure","Electrophoresis separates proteins on the basis of _________________","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],184745187,[36,37,38,39],"2","3","4","5","____ cysteines form a cystine by reversible formation of a disulfide bond via oxidation",{"answer":42,"createTime":5,"id":43,"options":44,"question":45,"source":30,"type":31},[],184745188,[36,37,38,39],"Desmosine is formed from ___ lysine residues, which is found in the fibrous protein elastin",{"answer":47,"createTime":5,"id":48,"options":49,"question":54,"source":30,"type":31},[],184745189,[50,51,52,53],"consensus","signature","repeat","nonconsensus","When a series of related nucleic acid or protein sequences are compared, a ____________ sequence is the one that reflects the most common base or amino acid at each position",{"answer":56,"createTime":5,"id":57,"options":58,"question":63,"source":30,"type":31},[],184745190,[59,60,61,62],"Acetylation","Phosphorylation","Glycosylation","Prenylation","_______________ is the most common type of regulatory modification of proteins",{"answer":65,"createTime":5,"id":66,"options":67,"question":72,"source":30,"type":31},[],184745191,[68,69,70,71],"Gly","Gln","Glu","Pro","The one-letter code for 20 amino acids was devised by the American biochemist Margaret Oakley Dayhoff, considered by many to be the founder of the field of bioinformatics. Q is ____",{"answer":74,"createTime":5,"id":75,"options":76,"question":81,"source":30,"type":31},[],184745192,[77,78,79,80],"net electric charge","size","binding affinity","number of amino acid residues","Ion-exchange chromatography separates proteins based on their differences in _____________________",{"answer":83,"createTime":5,"id":84,"options":85,"question":88,"source":30,"type":31},[],184745193,[86,87,36,37],"0","1","When pH = pI, the net charge of a protein is _____",{"answer":90,"createTime":5,"id":91,"options":92,"question":93,"source":30,"type":31},[],184745194,[87,36,37,38],"After removal of the precursor signal peptide, human proinsulin is post-translationally cleaved into three peptides: the B chain and A chain peptides, which are covalently linked via two disulfide bonds to form insulin, and C-peptide. So human insulin contains ____ chains",{"answer":95,"createTime":5,"id":6,"options":96,"question":19,"source":30,"type":31},[],[8,9,10,11]]