Which type of microscopy enhances and amplifies slight changes in the phase of transmitted light?

A) differential interference contrast microscopy
B) digital video microscopy
C) fluorescence microscopy
D) phase-contrast microscopy
E) both choices A and D


E) both choices A and D

Biology & Microbiology

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Where does the carbon in carbon dioxide waste originally come from in cell respiration?

A. Electron Transfer Phosphorylation B. Glycolysis C. The Krebs Cycle D. ATP Breakdown E. None of these

Biology & Microbiology

Which of the following types of mutation may play an important role in driving evolution because they are often nonlethal and, therefore, remain in the gene pool?

A. Missense B. Frameshift C. Nonsense D. Deletion

Biology & Microbiology

Match the symbol on the left with its description on the right

A) y-intercept of a Lineweaver–Burk plot B) turnover number C) Michaelis–Menten constant D) maximum velocity E) substrate concentration F) slope of a Michaelis–Menten plot 1) Km 2) kcat 3) Vmax 4) [S] 5) Km/Vmax 6) 1/Vmax

Biology & Microbiology

In response to environmental conditions, the average beak size in a population of birds may change between successive generations. This process of change is referred to as ________

A) macroevolution B) sequestration C) speciation D) coalescence E) microevolution

Biology & Microbiology