Using a laser beam to inactivate fluorescence dye molecules connected to proteins or lipids on a cell membrane is called
A) liposome formation.
B) electrophoresis.
C) photobleaching.
D) freeze-fracturing.
E) affinity labeling.
Answer: C
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The partial negative charge in a molecule of water occurs because _____
A) the oxygen atom donates an electron to each of the hydrogen atoms B) the electrons shared between the oxygen and hydrogen atoms spend more time around the oxygen atom nucleus than around the hydrogen atom nucleus C) the oxygen atom has two pairs of electrons in its valence shell that are not neutralized by hydrogen atoms D) the oxygen atom forms hybrid orbitals that distribute electrons unequally around the oxygen nucleus E) one of the hydrogen atoms donates an electron to the oxygen atom
What metabolism would be favored when there is a lack of electron acceptors?
A) anaerobic fermentation B) anoxygenic photosynthesis C) anoxic ammonia oxidation D) acetogenesis
Chi-square tests are used to determine whether a cross has been correctly constructed and analyzed
a. True b. False Indicate whether the statement is true or false
What qualities would you expect to observe in this lake?
1.lots of nutrients
2.more phytoplankton than algae
3.high biomass in the profundal zone
4.lots of oxygen at all levels