Each RNA polymerase contains subunits with homology to subunits of the E. coli RNA polymerase as well as additional subunits， which are unique to each polymerase.
Each RNA polymerase contains subunits with homology to subunits of the E. coli RNA polymerase as well as additional subunits， which are unique to each polymerase.
Which structure is not secondary structure of the protein？（） A: α-helix B: β- fold C: β- Angle D: subunits
Which structure is not secondary structure of the protein？（） A: α-helix B: β- fold C: β- Angle D: subunits
Which of the following statement about RNA polymerase in prokaryotes is correct: A: Holoenzyme is composed of five subunits (ααββ′σ) B: Any subunit of holoenzyme cannot bind to DNA separately in vivo C: Core enzyme consists of five subunits(ααββ′ω) D: σ factor helps RNA polymerase to recognize promoter
Which of the following statement about RNA polymerase in prokaryotes is correct: A: Holoenzyme is composed of five subunits (ααββ′σ) B: Any subunit of holoenzyme cannot bind to DNA separately in vivo C: Core enzyme consists of five subunits(ααββ′ω) D: σ factor helps RNA polymerase to recognize promoter
Each type of cytoskeletal component is composed of simple protein subunits that associate noncovalently to form filaments of uniform thickness.
Each type of cytoskeletal component is composed of simple protein subunits that associate noncovalently to form filaments of uniform thickness.
The<br/>spatial conformation of protein include: () A: α-helix B: β-pleated<br/>sheet C: domatin D: motif E: polymerization<br/>of subunits
The<br/>spatial conformation of protein include: () A: α-helix B: β-pleated<br/>sheet C: domatin D: motif E: polymerization<br/>of subunits
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
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
Which of the following statement about RNA polymerase 1 is correct ( ) A: Composed of 8~16 subunits B: The transcription product is rRNA C: Located in the nucleolus D: Sensitive to α-Amanita
Which of the following statement about RNA polymerase 1 is correct ( ) A: Composed of 8~16 subunits B: The transcription product is rRNA C: Located in the nucleolus D: Sensitive to α-Amanita
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
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
Which are correct about the descriptions of mRNA? A: Among the three RNAs, the metabolic rate is the fastest B: The secondary structure contains local double helix C: It consists of two subunits D: There are m7Gppp cap and polyA tail E: It contains genetic information
Which are correct about the descriptions of mRNA? A: Among the three RNAs, the metabolic rate is the fastest B: The secondary structure contains local double helix C: It consists of two subunits D: There are m7Gppp cap and polyA tail E: It contains genetic information
Bacterial ribosomes contain about 65% rRNA and 35% protein; they have a diameter of about 18 nm and are composed of two unequal subunits of ___________ and a combined sedimentation coefficient of 70S. A: 20S and 50S B: 30S and 40S C: 30S and 50S D: 30S and 60S
Bacterial ribosomes contain about 65% rRNA and 35% protein; they have a diameter of about 18 nm and are composed of two unequal subunits of ___________ and a combined sedimentation coefficient of 70S. A: 20S and 50S B: 30S and 40S C: 30S and 50S D: 30S and 60S