Describe the effects of mutating a sigma factor gene in bacteria

What will be an ideal response?


The core RNA polymerase enzyme will form. Since there are more than one sigma factor genes, by mutating a single sigma factor gene there will be some holoenzymes that will not form which will affect specific gene transcription.

Biology & Microbiology

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The oystercatcher is a member of the:

a. gulls. b. tubenoses. c. shorebirds. d. pelicans. e. albatrosses.

Biology & Microbiology

A person's spleen may be removed (splenectomy) if it becomes enlarged due to certain types of cancer, traumatic injury, or damage. What part of the immune system will be most affected by a splenectomy?

A) internal innate immunity B) external innate immunity C) adaptive immunity D) lymphatic system

Biology & Microbiology

Bony fish evolved ________ to help keep them afloat.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

The ____ are a group of parasitic fungi that are killing amphibians around the world.

A. chytrids B. ascomycetes C. basidiomycetes D. glomeromycetes E. zygomycetes

Biology & Microbiology