The name monocot and eudicot are derived from the differences in the number of
A. cotyledons.
B. roots.
C. seeds.
D. None of the choices are correct.
Answer: A
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The deflection by the earth's rotation of atmospheric flow to the right in the Northern Hemisphere, and to the left in the Southern Hemisphere, is known as the
A. Hadley effect. B. Gulf Stream. C. Coriolis effect. D. intertropical convergence zone. E. solar radiation effect.
Antigens may be processed for presentation by
A. macrophages. B. dendritic cells. C. erythrocytes. D. T cytotoxic cells. E. macrophages AND dendritic cells.
Which of the following has been used to measure more precisely the relatedness of primates?
a. hemoglobin b. blood type c. family trees d. convergence e. fossils
Transcription of a part of DNA molecule with a nucleotide sequence of A-A-A-C-A-A-C-T-T results in a mRNA molecule with the complementary sequence of
A. G-G-G-A-G-A-A-C-C B. U-U-U-C-U-U-C-A-A C. U-U-U-G-U-U-G-A-A D. T-T-T-G-A-A-G-C-C E. C-C-C-A-C-C-T-C-C F. None of these choices are correct