The operator is
A: Another name for the terminator of a gene
B: A DNA site bound by repressor proteins
C: A protein that coordinates gene expression
D: A part in the leader region of mRNA
A: Another name for the terminator of a gene
B: A DNA site bound by repressor proteins
C: A protein that coordinates gene expression
D: A part in the leader region of mRNA
举一反三
- 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.
- Operator is() A: where the<br/>repressor binds to regulate gene expression in an operon. B: controlled<br/>by promoter. C: is induced<br/>by lactose. D: is repressed<br/>by tryptophan.
- Among the following genes, ( ) is the housekeeping gene. A: Ribosomal protein gene B: Hemoglobin gene C: Insulin protein gene D: Ovalbumin gene
- The base substitution in the coding region of the gene must lead to the change of protein structure
- The base substitution in the coding region of the gene must lead to the change of protein structure A: 正确 B: 错误