217k views
0 votes
What are two different types of effectors that can bind to repressor proteins?

a) Substrates and co-repressors
b) Co-activators and inducers
c) Activators and re-inducers
d) Co-repressors and inducers

User NikhilP
by
7.7k points

1 Answer

5 votes

Final answer:

The two types of effectors that can bind to repressor proteins are co-repressors and inducers; co-repressors enhance the repressor's ability to inhibit transcription, while inducers prevent the repressor from binding to the operator, therefore promoting transcription. Option d is correct.

Step-by-step explanation:

In the context of prokaryotic gene regulation, the question asks what two different types of effectors can bind to repressor proteins. The correct answer is d) Co-repressors and inducers. A co-repressor is a substance that can bind to a repressor protein, causing the repressor to bind more tightly to the operator, blocking transcription.

On the other hand, an inducer binds to a repressor and prevents it from binding to the operator, thus allowing gene transcription to take place. Both of these effectors play a crucial role in the regulation of gene expression in an operon.

User Viraj Parekh
by
8.2k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.