Which of the Following Scenarios Is the Most Likely Mechanism

question 15

Multiple Choice

Which of the following scenarios is the most likely mechanism by which RNAi silences the expression of genes?

• A) RNAi binds to a mRNA strand before it reaches the ribosome, thereby preventing translation.
• B) RNAi binds to mRNA strand after it leaves the ribosome which prevents translation.
• C) RNAi binds to DNA which prevents transcription.
• D) RNAi binds to RNA primase which prevents the transcription of the gene.
• E) RNAi binds to helicase which prevents DNA replication and thereby the expression of the gene.

---

Definitions:

High Blood Pressure

A medical condition where the pressure of the blood against the artery walls is consistently too high, potentially leading to health problems.

Type 2 Diabetes

A chronic condition characterized by high blood sugar levels due to the body's inability to properly use insulin.

Cardiovascular Disease

A group of disorders affecting the heart or the blood vessels, which encompasses conditions like coronary artery disease, hypertension, and stroke.

Set-Points

The theory that each person's body has a predetermined or natural weight that it seeks to maintain through various physiological mechanisms.