During transcription elongation, how many pyrophosphate molecules are produced from the incorporation of 20 ribonucleoside monophosphates?
A. 60
B. 40
C. 5
D. 20
Answer: D
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It is hypothesized that the high diversity of rock-dwelling species within the cichlids is due to:
a. allopolyploidy. b. poor water quality. c. polyploidy coloration. d. disruptive sexual selection. e. macroevolution
Which is true of Dietary Reference Intakes?
A. They are an estimate of what people normally eat. B. If they are followed you will be healthy. C. They apply to a person with medical problems. D. They provide information on the amounts of certain nutrients various members of the public should receive.
An evolutionary advancement occurred when organisms became multicellular and acquired a division of labor.
a. true b. false
TCRs only recognize antigens presented by APC; therefore, (BCR/MHC/Th1 ) molecules ultimately determine which epitopes elicit an immune response
What will be an ideal response?