At equilibrium, all molecular movement stops
a. True
b. False
b
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Vibrio cholerae is most often associated with
A. breathing air. B. eating food. C. drinking water. D. touching animals
Phrases 60–69 refer to the eukaryotic cell cycle. Select the single
BEST choice for each phrase. a. G2 b. mitosis c. S d. G1 e. cytokinesis E 60. period when DNA is duplicated E 61. last part of interphase in the parent cell (i.e. when the cell is no longer in interphase) M 62. event that forms two daughter cytoplasmic masses D 63. period of cell growth before DNA duplication E 64. period after DNA is duplicated M 65. period of nuclear division E 66. period when interphase begins in a daughter cell M 67. period commonly followed by cytokinesis M 68. period in which metaphase occurs D 69. period prior to mitosis
A metabolic reaction requires 40 units of enzymatic activity to proceed. If a dominant allele D can generate 40 units of enzyme and a mutant allele d" generates 20 units of enzyme, what can be said of the dominant wild-type allele?
What will be an ideal response?
In a population of 100 four-o'clock flowers there are 40 red-flowered plants (CRCR), 38 pink-flowered plants (CRCW), and 22 white-flowered plants (CWCW). What is the frequency of the CW allele in this population?
A. 0.41 or 41% B. 0.52 or 52% C. 0.6 or 60% D. 0.09 or 9% E. 0.32 or 32%