Polypeptide Chain Elongation in E

question 80

Essay

Polypeptide chain elongation in E. coli occurs by the cyclical repetition of three steps. What are these steps and what cellular components are necessary for each of them to occur?

---

Definitions:

Arachnoid Granulation

Protrusions of the arachnoid meningeal layer into the dural venous sinuses, allowing cerebrospinal fluid to return to the bloodstream.

Cerebrospinal Fluid

A clear, colorless body fluid found in the brain and spinal cord, acting as a cushion for the brain's cortex, providing basic mechanical and immunological protection to the brain inside the skull.

Roman Numeral

Symbols used in a system of numerical notation based on the ancient Roman system, typically utilizing letters such as I, V, X, L, C, D, and M.

Cranial Nerve

One of twelve nerves that originate in the brain and provide motor and sensory input directly to and from areas of the head and neck.