MMSC490 Practice Exam 1 (A+ GUARANTEED)

cytoplasmic organelles are: a. absent in prokaryotic cells and present in eukaryotic cells. b. present in both prokaryotic and eukaryotic cells. c. present in prokaryotic cells and absent in eukaryotic cells. d. absent in both prokaryotic and eukaryotic cells. correct answers a. absent in prokaryotic cells and present in eukaryotic cells E. coli is a useful model system for molecular biology studies because: a. it has a small genome. b. it reproduces rapidly. c. mutants can easily be isolated from culture dishes. d. All of the above correct answers d. all of the above Arabidopsis thaliana is a model organism for studying the molecular biology of: a. plants. b. fungi. c. fruit flies. d. vertebrates. correct answers a. plants The diffraction limited resolving power of a standard light microscope is approximately: a. 0.2 mm. b. 0.2 µm. c. 0.2 nm. d. 2 Å. correct answers b. 0.2 um A common use of green fluorescent protein (GFP) is to: