Which of the following sigma factors is essential for general transcription in exponentially growing cells?

A. ?28
B. ?32
C. ?38
D. ?54
E. ?70


E

Biology & Microbiology

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Hyphae form a covering over roots. These hyphae create a large surface area that helps to do which of the following?

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Answer the following statement true (T) or false (F)

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The structure that transports sperm cells from the epididymis to the urethra is the 

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