In a given bacterium, transcription of housekeeping genes is normal, but genes involved in nitrogen metabolism, stress, and chemotaxis are disrupted. Which sigma subunit is intact? A)σ²⁸ B)σ³² C)σ³⁵ D)σ⁵⁴ E)σ⁷⁰

Question

Quizplus · Accepted Answer

The σ⁷⁰ subunit is responsible for the transcription of housekeeping genes, which are essential for basic cellular functions and are expressed under normal growth conditions. Since transcription of housekeeping genes is normal, σ⁷⁰ is intact.

In a Given Bacterium, Transcription of Housekeeping Genes Is Normal