A divergence from _____ gave rise to tetrapods
a. ray-finned fishes c. cartilaginous fishes
b. lizards d. lobe-finned fishes
D
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Macromolecules that are used by most organisms to store hereditary information are called:
A. proteins. B. transfer RNA molecules. C. ribosomal RNA molecules. D. DNA molecules. E. messenger RNA molecules.
Photosynthesis takes place in
a. flowers only. b. leaves only. c. roots only. d. any green part of the plant
Erythromcycin, a macrolide, inhibits protein synthesis
A. by preventing the formation of the initiation complex. B. by binding to the tRNA preventing peptide bond formation between amino acids. C. by interfering with both the initiation and elongation stages of translation. D. by binding to the ribosome, preventing translocation due to interference with the attachment of mRNA.
Spontaneous generation was a theory defined by:
A) Aristotle B) Francesco Redi C) Robert Hooke D) Louis Pasteur E) someone else