How Are RNA Hairpin Turns Related to Termination

question 24

Multiple Choice

How are RNA hairpin turns related to termination?

• A) Release factors bind to sites on the hairpin turn, causing release of the RNA transcript.
• B) The turns are formed from complementary base pairing and cause separation of the RNA transcript and RNA polymerase.
• C) The hairpin turn prevents more nucleoside triphosphates from entering the active site of the enzymes, effectively shutting off the process of polymerization.
• D) A three- base repeat signals a stop sequence, and the RNA transcript is released.

---

Definitions:

Polar

A molecule with uneven distribution of charges, leading to positive and negative ends, affecting solubility and melting/boiling points.

Benzene

A chemical compound with the formula C6H6, known as an aromatic hydrocarbon and used as a starting material in the production of numerous chemicals.

Alkane Solvents

Solvents composed of alkanes, which are hydrocarbons containing only single bonds between carbon atoms, making them nonpolar and good for dissolving similar substances.

Soluble

The ability of a substance to be dissolved in a solvent, forming a homogeneous mixture at the molecular or ionic level.