What technique(s) can be used to characterize the phylogenetic composition of a microbial community without culturing any of the members?
A) green fluorescent protein tagging
B) stable isotope techniques
C) radioisotope experiments
D) fluorescent in situ hybridization
Answer: D
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The resting potential across a typical neuron
membrane is approximately __________ inside relative to outside. a. -70 microvolts b. -70 millivolts c. -70 volts d. +70 millivolts e. +70 megavolts
The difference in lipid and protein composition between the membranes of the endomembrane system is largely determined by the _____
A) transportation of membrane lipids among the membranes of the endomembrane system by small membrane vesicles B) function of the Golgi apparatus in sorting and directing membrane components C) modification of the membrane components once they reach their final destination D) synthesis of different lipids and proteins in each of the organelles of the endomembrane system
Which animal is an induced ovulator?
A. dogs B. apes C. rabbits D. humans
The surface of the cells of some Pseudomonas species are covered in numerous threadlike structures. What is the likely reaction of such a Pseudomonas cell to the presence of a food particle?
A. Directional movement toward the food particle using a gliding motion B. No movement because it is cemented in place C. Directional movement toward the food particle using an amoeboid motion D. No movement because the cell synthesizes its own food E. Directional movement toward the food particle using a swimming motion