In an E Coli Cell, Which of the Following Is the Last

question 6

Multiple Choice

In an E. coli cell, which of the following is the last item to be added to the 70S initiation complex?

• A)mRNA
• B)tRNA carrying formylmethionine
• C)30S ribosomal subunit
• D)50S ribosomal subunit
• E)initiation factors IF1, IF2 and IF3

---

Definitions:

Product

The result of multiplying two or more numbers together or the substances formed at the end of a chemical reaction.

Concentration

The measure of the amount of a sub-component (especially solute) in a solution, denoting how much of a substance is contained in a certain amount of another substance.

Shift

In a general sense, it refers to a change or movement from one position, state, or direction to another.

Equilibrium Constant

A number that expresses the ratio of products to reactants at equilibrium for a chemical reaction, indicating the extent of the reaction.