某蛋白质分子由N条肽链组成，已知它共由M个氨基酸组成，则此蛋白

某蛋白质分子由N条肽链组成，已知它共由M个氨基酸组成，则此蛋白质中至少含有的氧原子数与氮原子数共有

A．（M+N）个 B．（2M－N）个 C．（2N+M）个 D．（2M+N）个

答案

相关题目

—Hurry up! We still have 30 miles to _____before dark. —Ok. I will mak

—Hurry up! We still have 30 miles to _____before dark. —Ok. I will make every effort not to fall behind. A. finish B. keep C. pass

How do you usually buy what you need, shopping on line or going out to shop in

How do you usually buy what you need, shopping on line or going out to shop in person? With the help of the Internet, shopping is ___1___(easy) than before. We can just click our mouse to choose th

将“PZ220－100”的灯泡与总电阻是121Ω的滑动变阻器串联起来

将“PZ220－100”的灯泡与总电阻是121Ω的滑动变阻器串联起来，接到220V的电源上，如图9－9示，调整滑动变阻器的阻值时，可使电灯的功率在多大范围内

——Bob has gone to California. ——Oh, can you tell me when he

——Bob has gone to California. ——Oh, can you tell me when he ? A. has left B. left C. is leaving D. would leave

日本1889年宪法规定，天皇总揽统治大权，内阁辅佐天皇。包

日本1889年宪法规定，天皇总揽统治大权，内阁辅佐天皇。包含相似规定的宪法是 ①《德意志帝国宪法》②美国1787年宪法③法兰西第三共和国宪法④英

X、Y、Z、W均为中学化学的常见物质，一定条件下它们之间有

X、Y、Z、W均为中学化学的常见物质，一定条件下它们之间有如下转化关系（其它产物已略去）：下列说法不正确的是（） A．若W是单质

（5分）下图为人体内三种不同的血管，请根据所学知识回答

（5分）下图为人体内三种不同的血管，请根据所学知识回答下列问题：(1)图中甲所示的血管是_________________________。(2)如果乙血管受伤出血，应在受伤血

People say teenagers are no good. They make too much noise in shopping malls; th

People say teenagers are no good. They make too much noise in shopping malls; they drive carelessly up and down America’s main streets. And at least some of the time those things are true. But we sh

某蛋白质分子由N条肽链组成，已知它共由M个氨基酸组成，则此蛋白

答案

相关题目

最新题目