The Methanobacteria,halobacteria,and Sulfobacteria Are Included in Which Domain

question 47

Multiple Choice

The methanobacteria,halobacteria,and sulfobacteria are included in which domain?

• A)bacteria
• B)protista
• C)blue-green algae
• D)archaea
• E)eukarya

---

Definitions:

E. Coli

Escherichia coli, a rod-shaped bacterium that is commonly found in the intestines of warm-blooded organisms and can be either harmless or pathogenic.

Lac Repressor

A protein that binds to the lac operon and inhibits the metabolism of lactose in bacteria.

RNA Polymerase

An enzyme responsible for synthesizing RNA molecules from DNA templates, playing a crucial role in gene expression and regulation.

Promotor

A region of DNA that initiates transcription of a particular gene, crucial for regulating gene expression.