Chemotaxis is a sensory response affecting the rotational direction of the flagellar motor
Indicate whether the statement is true or false.
Answer: TRUE
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Which of the following occurs in prokaryotes but not in eukaryotes?
A) post-transcriptional splicing B) concurrent transcription and translation C) translation in the absence of a ribosome D) gene regulation
The effect of smoking on the respiratory tract includes
a. reduced production of mucus. b. increased development of cells. c. immobilization of ciliated cells. d. destruction of white blood cells that patrol the respiratory tract. e. both immobilization of ciliated cells and destruction of white blood cells that patrol the respiratory tract.
In a population of 50,000 diploid individuals, what is the probability that a new neutral mutation will ultimately reach fixation?
a. 0.001 b. 0.0001 c. 0.00001 d. 0.000001 e. 0.0000001
What basal transcription factor is a helicase?
A. TFIID B. TFIIH C. TFIIF D. TFIIB