biology multiple choice help 9. Which of the following proteins does not form a

Question

biology multiple choice help

9. Which of the following proteins does not form a dimer or tetramer? A. Zif 268 B. TR (thyroid receptor) C, Max D. Lac repressor E Mad 10. One can identify proteins that bind acetylated histones because of they contain which domain? A. Homeodomain B. bHLH-ZIP domain C. SANT domain D. HDAC domain E. Bromodomain 11 What is chromatin? A. DNA packaged into a set of nucleosomes B. 30 nm fiber coiled in a zigzag pattern C histone core proteins D, histone core proteins with H1 E. DNA wound around a histone core protein

Explanation / Answer

10.

A. Zif268

Zif268 binds DNA as a monomer.

Reference: The transcription factor Egr1 is a direct regulator of multiple tumor suppressors including TGF1, PTEN, p53 and Fibronectin.

11.

E. Bromodomain

Reference: Bromodomain: an acetyl-lysine binding domain.

12.

A. DNA packaged into a set of nucleosomes.

DNA wrapped around histone proteins forming several nucleosomes (Beads on a string structure) is known as chromatin. (Specifically Euchromatin)

30 nm fiber: Heterochromatin

Related Questions

Navigate

• Browse (All)
• Browse B
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.