举一反三
- The protein localization is determined by its sorting signal that directs the protein to the organelle.
- Nuclear localization signal]
- 中国大学MOOC: The signal peptide is guided to the membrane of the ER by at least two components:a _________ ,which binds to the signal peptide in the cytosol, and the _____________,which is located in the ER membrane .
- What is the location when the neuron's electrical signal changes to a chemcial signal? A: axon B: synapse C: myelin sheath D: nucleus
- 163．When using a hand held smoke signal from a lifeboat, you should activate the signal __.
内容
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Which of the following statement is not true? A: the sinoatrial node sets the rhythm for heart beat B: the signal from the sinoatrial node can be directly transported to Bundle of His C: the signal from the A-V node is passed to bundle of His D: the distal end of the bundle of His is called purkinje fiibers
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One can predict the amino acid sequence of a protein from the nucleotide sequence of its gene.
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Some nuclear receptor proteins may be activated by intracellular metabolites rather than by secreted signal molecules.
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不参与蛋白质最初合成的是（） A: 信号识别颗粒（signal recognition particle，SRP） B: 停泊蛋白（docking protein） C: 易位子（translocon） D: 停止转移序列（stop transfer sequence）
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中国大学MOOC: 细胞核蛋白的主动输入需要有以下成分参与:带有核定位信号nuclear localization signal NLS的核蛋白、核输入受体异二聚体（importin a和importin b）两个亚单位 、小GTP结合蛋白Ran、核孔中央栓（transporter）复合体等。请问以下论述中哪个是不正确的说法?