【判断题】Proteins can only bind to other proteins.
【多选题】A cell can control the proteins it contains by:
A.
(1) controlling when and how often a given gene is transcribed, (2) controlling how an RNA transcript is spliced or otherwise processed
B.
(3) selecting which mRNAs are exported from the nucleus to the cytosol
C.
(4) regulating how quickly certain mRNA molecules are degraded, (5) selecting which mRNAs are translated into protein by ribosomes
D.
(6) regulating how rapidly specific proteins are destroyed after they have been made; in addition, the activity of individual proteins, once they have been synthesized, can be further regulated in a variety of ways
【多选题】Proteins can be globular or fibrous, and they can form ____________________.
【多选题】The membrane proteins can be classified into three categories: ( )
B.
lipid-anchored membrane proteins
C.
peripheral membrane proteins
【判断题】与边沁相比,密尔提出快乐不仅有数量的区分,也有质的不同,但是他无法有说服力地证明精神快乐高于物质快乐的理由,所以这种区分是无意义的。()
【单选题】“船政根本在于学堂”提出这一观点的人是 。
【简答题】Proteins can be selectively precipitated by ____________ and _____________.
【判断题】Only carrier proteins can carry out active transport, but both carrier proteins and channel proteins can carry out passive transport.