Answer the question using the accompanying figure. Which number identifies the structure that carries supplemental
genetic information?
a. 1
b. 2
c. 3
d. 4
e. 5
ANSWER: b
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What is required for formation of the transcription initiation complex in eukaryotes?
A. binding of a transcription factor to the TATA box, followed by recruitment of additional transcription factors and recruitment of RNA polymerase II B. binding of a transcription factor to the transcription bubble, followed by recruitment of additional transcription factors and recruitment of RNA polymerase III C. binding of the sigma subunit to the start site followed by recruitment of RNA polymerase II D. binding of RNA polymerase II to the TATA box, followed by recruitment of transcription factors E. binding of the sigma subunit to promoter elements at -35 and -10, followed by recruitment of the core polymerase
The respiratory centers that control ventilation of the lungs in mammals are located in the
A. brainstem. B. hypothalamus. C. cerebral cortex. D. bronchi. E. neck.
The sudden, unexpected occurrence of a disease in a limited segment of a population is called a(n) ________.
A. epidemic B. sporadic disease C. outbreak D. incident
The core of a virus is
a. a protein. b. a sugar. c. a nucleic acid. d. a fat. e. a phosphate.