Eutherian mammals are uniquely defined by:
A. having a placenta
B. longer gestation periods because of more highly developed placentas
C. having fur
D. the young developing in a pouch
E. laying eggs
B. longer gestation periods because of more highly developed placentas
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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.
Carbon is stored in what form?
a. land biomass b. sediments c. rocks d. the ocean e. all of these
The progress of the eukaryotic cell cycle is regulated primarily by what proteins?
A. Cyclins B. Condensins C. Histone proteins D. FtsZ
Allopolyploidy is a significant factor in the evolution of which type of organism?
a. fungi b. animals c. bacteria d. protozoa e. flowering plants