There Are Unpaired Electrons in the Lewis Symbol for an Oxygen

question 74

Multiple Choice

There are unpaired electrons in the Lewis symbol for an oxygen atom.

• A) 3
• B) 0
• C) 4
• D) 2
• E) 1

---

Definitions:

Promoter Region

The promoter region is a sequence of DNA that initiates transcription of a particular gene, essential for gene expression regulation.

RNA Polymerase

An enzyme responsible for synthesizing RNA from a DNA template, playing a crucial role in the process of transcription.

Tryptophan Operon

A cluster of genes in bacteria that is involved in the production of tryptophan, regulated through feedback inhibition.

Repressor

A protein that binds to specific DNA sequences, preventing or reducing the transcription of certain genes.