Which of the Following Is Not Present in the Core $\beta$

question 9

Multiple Choice

Which of the following is not present in the core RNA polymerase?

• A)\(\beta\)
• B)\(\beta\)F'
• C)\(\sigma\)
• D)both \(\beta\)and \(\sigma\)
• E)none of the choices are correct.

---

Definitions:

Intercalated Discs

Specialized connections between cardiac muscle cells containing gap junctions and desmosomes, facilitating coordinated contraction.

Desmosomes

Cell structures specialized for cell-to-cell adhesion, critical in maintaining the structural integrity of tissues.

Tight Junction

A specialized connection between two adjacent cells forming a barrier that regulates the passage of substances in the intercellular space.

Intercalated Disc

Unique links among heart muscle cells that enable the heart to contract in unison.