Four of the following are associated with mushrooms. Which one is the exception?
a. Gills
b. dikaryotic hyphae
c. nuclear fusion
d. Meiosis
e. flagellated spores
ANSWER: e
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If the activity of the sodium-potassium pump was completely stopped, what would happen to the neuron's membrane potential?
A) immediate loss of resting potential B) immediate loss of action potentials C) slow decrease of resting potential D) no effect
The zombie-ant fungus lives in the __________ of a carpenter ant
a. bloodstream b. brain c. digestive tract d. exoskeleton
Two populations experience equally severe bottlenecks, reducing each to one-tenth of its original size. One population is in the bottleneck for one generation, and the other is in the bottleneck for five generations
You assess the heterozygosity of both populations after they have been restored to their prebottleneck size. What do you expect to find, and why?
Meselson and Stahl determined that DNA replication in E. coli is semiconservative. What additive did they initially supply to the medium in order to distinguish "new" from "old" DNA?
What will be an ideal response?