In prokaryotes, the form of RNA polymerase that can accurately initiate synthesis of RNA is called
A. the holoenzyme.
B. the core polymerase.
C. RNA polymerase II.
D. RNA polymerase III.
E. the sigma subunit.
A. the holoenzyme.
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Within insects, the main evolutionary dividing line is between those that
A. fly and those that do not fly. B. have lost wings that were present in their common ancestor and those that still fly. C. shed their wings as they molt and those that do not. D. undergo metamorphosis and those that don't. E. have eggshells and those that don't.
Each human contains an identical set of VNTRs
Indicate whether the statement is true or false
The continued geographic isolation of Kaibab squirrels from Abert squirrels has allowed the animals to evolve into
two distinct subspecies. This is an example of: a. hybridization. b. allopolyploidy. c. adaptive radiation. d. allopatric speciation. e. sympatric speciation.
Which process is used to ensure that plates contain 30 to 300 colonies at the end of plate counting methods?
a) Turbidity b) Serial dilution c) Filtration d) Pour plates