Which of the following describes an accurate order of events in
translation?()
A: Ribosomal translocation occurs before the first aminoacyl-tRNA
molecule binds to the small subunit.
B: Initiation of translation occurs only after the small subunit
dissociates from the mRN
C: The large subunit of the ribosome binds the mRNA before the small
subunit.
D: The first aminoacyl-tRNA molecule binds to the small subunit before
the large subunit binds.
translation?()
A: Ribosomal translocation occurs before the first aminoacyl-tRNA
molecule binds to the small subunit.
B: Initiation of translation occurs only after the small subunit
dissociates from the mRN
C: The large subunit of the ribosome binds the mRNA before the small
subunit.
D: The first aminoacyl-tRNA molecule binds to the small subunit before
the large subunit binds.
D
举一反三
- Which of the following is composed of a large and a small subunit? () A: Golgi apparatus B: endoplasmic reticulum C: mitochondria D: Ribosome
- 中国大学MOOC: During the import of proteins into the nucleus, the a importin subunit binds directly to
- RNA polymerase: () A: binds tightly to a region of DNA thousands of base pairs away from<br/>the DNA to be transcribed. B: can synthesize RNA chains without a primer. C: has a subunit called λ (lambda), which acts as a proofreading<br/>ribonuclease. D: separates DNA strands throughout a long region of DNA (up to<br/>thousands of base pairs), then copies one of them. E: synthesizes RNA chains in the 3' →direction.
- In general, a small KM indicates that a substrate binds very tightly to the enzyme, and a large KM indicates weak binding.
- Which of the following statements about RNA polymerase II is wrong? A: It makes mRNA precursors B: It is strongly inhibited by a-amanitin C: It is composed of several subunits D: It has high frequency phosphorylation of the CTD in the maximum subunit<br/>during initiation
内容
- 0
Which of following subunit is mainly responsible to catalyze the synthesis of ATP in ATP synthase?
- 1
亚单位疫苗（subunit vaccine）
- 2
Which of the<br/>following statement about RNA polymerase in prokaryotes is<br/>correct:() A: Holoenzyme is composed of five subunits (ααββ′σ) B: Any subunit of<br/>holoenzyme cannot bind to DNA separately in vivo. C: Core enzyme<br/>consists of five subunits(ααββ′ω) D: σ factor can<br/>catalyze the synthesis of RNA E: σ factor<br/>helps RNA polymerase to recognize promoter
- 3
____<br/>the night before Christmas Day, parents fill their children’s<br/>stockings with small presents. A: Of B: At C: To D: On
- 4
I must have these large pants （）before I can wear them A: small B: made smaller C: to make small D: making small