Operon do not include( ):
A: promoter
B: regulatory sequence
C: operator
D: structural gene
E: trans-acting factor
A: promoter
B: regulatory sequence
C: operator
D: structural gene
E: trans-acting factor
举一反三
- 能与阻遏蛋白相结合的调控序列，叫做 A: RBS B: operon C: promoter D: operator E: SD序列
- When only glucose is available to E. coli in the culture medium: ( ) A: cAMP-CAP is bound to the promoter； B: cAMP-CAP is not bound to the promoter； C: The repressor is not bound to the operator； D: The lac operon is turn on
- Operator: ( ) A: An operator is a DNA region that is working with promoter for genes to express. B: An operator is a DNA region at 5’ of a gene for a repressor to bind to prevent gene expression. C: An operator is a repressor protein to help genes to express. D: An operator is a repressor protein to inhibit genes to express.
- In prokaryotic cells, the DNA sequence which can be recognized and bound with RNA polymerase is called ( ) A: enhancer B: promoter C: silencer D: operator E: attenuator
- Operator is bound by A: activator B: repressor C: promoter D: enhancer E: silencer