Match the following
1. Inducible |
a. The product of a regulatory gene shuts off the expression of genes under its control. |
2. Constitutive |
b. It is a regulation which is switched on in response to the presence of a substrate |
3. Repressible |
c. The genes and their proteins remain operational throughout. |
4. Negative control |
d. It is a regulation in which the activity of the gene is stopped if the product of its activity is already present. |
1.c.,2.d.,3.b.,4.a,
1.d.,2.c.3.a.,4.b.
1.c.,2.c.,3.d.,4.b.
1.b.,2.c.,3.d.,4.a.
As we have already studied in Regulation of Gene Expression & Its Types -
Inducible - It is a regulation which is switched on in response to the presence of a substrate.
Constitutive - The genes and their proteins remain operational throughout.
Repressible - It is a regulation in which the activity of the gene is stopped if the product of its activity is already present.
Negative Control - The product of a regulatory gene shuts off the expression of genes under its control.
Hence, the correct option is (d).