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b. Drosophila melanogaster c. Xenopus laevis d. Yeast 18. Arabidopsis thaliana i

ID: 200177 • Letter: B

Question

b. Drosophila melanogaster c. Xenopus laevis d. Yeast 18. Arabidopsis thaliana is a model organism for studying the molecular biology of a. fungi c. fruit flies. d. vertebrates. 19. Living cells are commonly visualized by means of a. phase-contrast b. bright-field c. fluorescence d. electron microscopy. 20. A common use of green fluorescent protein (GFP) is to a. label antibodies. b. visualize proteins in living cells. c. photobleach other fluorescent proteins. d. label DNA sequences 21 . Sugars can cyclize if they contain, a. four b. five or more carbons. C. SIX d. seven 22. The major bonds in glycogen are lycosidic bonds 1-+4) a(1-6) d. (1-6) 23. Lipids play a major role in cells as a, a form of energy storage. b. components of cell membranes c. part of the cell signaling function il l of the above 24. Sphingomyelin contains two hydrocarbon chains linked to a. glycerol.

Explanation / Answer

19. A- phase - contrast

20. B- visualize protein in lovili cells

21. A- four

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