问题:单选题属于正性调节的反式作用因子是( )。A B C D E...
Saturday, April 15, 2023
Thursday, September 22, 2022
问题:单选题下列不属于癌基因产物的是( )。A 生长因子类似物B 跨膜生长因子受体C 核内转录因子D 胞内信息传递体E 参与体内生物转化的代谢物...
Friday, March 17, 2023
问题:多选题大肠杆菌DNA聚合酶Ⅰ具有( )。A5′-3′聚合酶活性B5′-3′外切酶活性C3′-5′外切酶活性D3′-5′聚合酶活性...
Monday, April 29, 2024
Saturday, September 17, 2022
Thursday, September 22, 2022
问题:单选题将病毒RNA的核苷酸顺序的信息,在宿主体内转变为脱氧核苷酸顺序的过程是( )。A B C D E...
Monday, April 29, 2024
Monday, September 19, 2022
问题:减少真核染色体线性DNA末端降解和缩短的方式是( )。...
Wednesday, September 21, 2022
Thursday, September 22, 2022
问题:DNA序列中单一核苷酸(碱基)改变而产生的多态性称为( )。...
Thursday, September 22, 2022
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:单选题下列常用于测定多肽N末端氨基酸的试剂是( )。A 溴化氢B 丹磺酰氯C 羟胺D β巯基乙醇E 过甲酸...
Monday, December 26, 2022
问题:翻译过程需要消耗能量(ATP或GTP)的反应有( )。...
Thursday, September 15, 2022
问题:单选题属于基因表达异常的变异是( )。A B C D...
Sunday, April 16, 2023
Tuesday, September 20, 2022
问题:多选题下列癌基因中表达产物位于胞液中的是( )。AsisBrafCablDras...
Friday, February 9, 2024
Friday, September 16, 2022