Question

Which of the following sequence helps in modification but not in protein synthesis?

• A. Integrator site
• B. Sensor site
• C. Producer site
• D. Both A and B

Answer 1

The correct option is D Both A and B

Producer site produces pre mRNA, which after processing becomes mRNA. Its expression is under the control of many receptor sites. mRNA later takes part in protein synthesis during translation.

Integrator gene is responsible for the synthesis of an activator RNA molecule that activates the receptor site. A sensor site regulates the activity of an integrator gene which can be transcribed only when the sensor site is activated.

So, the correct option is 'Both A and B'.