【单选题】Which hormone stimulates its target cells to divide, increases their rate of protein synthesis, decreases their use of glucose and increases their use of fats?
【判断题】Protein kinase A itself is different in different cell types, which explains why the effects of cyclic AMP vary depending on the target cell. ( )
【单选题】A tumor was found in which altered expression of a miRNA led to uncontrolled cellular proliferation. If the target of this miRNA was the Myc protein, how best would this miRNA be characterized?
B.
As a dominant-negative effector
D.
As a factor that upregulates its target
E.
As a regulatory factor for an enzyme important in DNA repair
【判断题】当事人及其法定代理人要求公安机关负责人、办案人员回避的,应当提出申请,并说明理由。( )
【单选题】More than ______ of all drugs on the market target one G protein-coupled receptor (GPCR) or another.
【多选题】当事人及其法定代理人要求公安机关负责人、办案人员回避的条件是()。
【单选题】办理公安行政案件过程中,当事人及其法定代理人要求公安机关负责人、办案人员回避的,应当()。