Which of the Following Is the First Event to Take

question 54

Multiple Choice

Which of the following is the first event to take place in translation in eukaryotes?

• A) elongation of the polypeptide
• B) base pairing of activated methionine-tRNA to AUG of the messenger RNA
• C) binding of the larger ribosomal subunit to smaller ribosomal subunits
• D) covalent bonding between the first two amino acids
• E) the small subunit of the ribosome recognizing and attaching to the 5' cap of mRNA

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Definitions:

Covalent Bond

A chemical bond formed by the sharing of one or more pairs of electrons between atoms to achieve stability.

Lone Pair Electrons

A pair of valence electrons that are not shared with another atom and hence do not participate in bonding but influence molecular shape and polarity.

Hydrogen Chloride

A diatomic molecule composed of hydrogen and chlorine; when dissolved in water, it forms hydrochloric acid.

Lewis Structure

A representation of molecules showing how the valence electrons are arranged among atoms in the molecule.