Where is the amino-acid binding site located on the tRNA molecule?
a. in the middle of the loop
b. at the end of the 3? end of the molecule
c. in the first loop
d. along the longest stretch of base pairing in the molecule
e. on the 5? end of the molecule
B
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Artificial selection includes which of the following?
a. Breeding dogs for specific traits. b. Cross breeding plants to produce cultivars. c. Selectively cross breeding cats. d. All of the above. e. None of the above.
What are the three checkpoints of the cell cycle and what is being “checked” during each one?
What will be an ideal response?
The DNA strands that will be together in the
new DNA molecules are a. A ? D and B ? C. b. A ? B and C ? D. c. A ? C and B ? D. d. A ? D ? B and A ? D ? C. e. A ? B ? C ? D.
The cellular process which uses oxygen and sugar to produce energy is called
a. photosynthesis b. cell division c. cellular respiration d. DNA replication