The eukaryotic transcription initiation complex is (check all that apply)
A. only associated with RNA polymerase I.
B. transcription of virtually all genes transcribed by RNA pol II requiring the same suite of general factors.
C. interactive with activators through DNA looping.
D. responsible for highly regulated transcription levels.
E. a basal factor associated with RNA pol II after positioning RNA pol II at the start site.
Answer: D
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Which of the following is not true of RNA synthesis by RNA polymerase?
A. RNA synthesis is less processive during elongation than during initiation. B. Synthesis begins with the polymerase binding two rNTP molecules. C. The polymerase frequently releases the nascent transcript before it reaches 8–10 nucleotides in length. D. The addition of an rNTP to a growing transcript is a magnesium ion-dependent reaction. E. All of the choices given are true.
The mitochondrial genome consists of ________ genes.
A) 12 B) 37 C) 250 D) 370
The product of meiosis II during spermatogenesis is the ____
a. sperm b. spermatid c. primary spermatocyte d. secondary spermatocyte e. spermatogonium
Which of the following statements is(are) true about
prokaryotic cells? a. They are the smallest known cells. b. They are the most metabolically diverse forms of life. c. They exploit the energy resources in nearly all environments. d. They exploit raw materials in nearly all environments. e. All of the above are true.