A bacterial cell has a nonsense mutation that prevents it from producing a functional sigma subunit for RNA polymerase. Inability to synthesize a functional sigma subunit would have the most direct effect on

A. translation termination.
B. translation initiation.
C. transcription termination.
D. transcription initiation.
E. transcription elongation.


Answer: D

Biology & Microbiology

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Without proofreading, the rate of DNA replication errors in bacteria and eukaryotes is as high as one for every ____

nucleotides assembled.

a. 10 to 100 b. 100,000 to 1,000,000 c. 1,000 to 10,000 d. 10,000,000 to 100,000,000 e. 100,000,000 to 1,000,000,000

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For the genetic cross Aa Aa, 3:1 is the:

What will be an ideal response?

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An EPSP is an example of a graded potential

____________________ Indicate whether the statement is true or false.

Biology & Microbiology