Which characteristic is shared by both cnidarians and flatworms?

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#Question id: 11212

#Unit 7. System Physiology – Animal

The activity of acetylcholine in a synapse is terminated by its ________.

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#Question id: 10605

#Unit 10. Ecological Principles

DN/dt = rN (K-N/K )The logistic equation above is used to describe the rate of change of a population, N, with time, t, Where r is the intrinsic rate of increase and K is the carrying capacity. Which of N value will show maximum per capita growth rate?  (K= 1000, r =.05)

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#Question id: 1456

#Unit 4. Cell Communication and Cell Signaling

Besides the ability of some cancer cells to over proliferate, which of the following situations might logically result in a tumor?

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#Question id: 11334

#Unit 10. Ecological Principles

To qualify as a biodiversity hotspot, a region must meet following two strict criteria

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#Question id: 17659

#Unit 13. Methods in Biology

During your study of the gene for an enzyme you have isolated an amber mutation in the middle of the gene which produces a truncated form of the enzyme. By placing a +1 frameshift mutation a short distance before the amber mutation and a –1 frameshift mutation a short distance after the amber mutation you create a triple mutant that restores expression of a functional, full-length enzyme. 

a) +1 frameshift puts the amber mutation out of frame so that it is no longer read as a stop.

b) -1 frameshift is inserted after the amber so that no longer read as a stop.

c)  -1 frameshift is inserted after the amber to restore the frame of the end of the protein.

d) +1 frameshift puts the amber mutation out of frame so that it restore the frame of the end of the protein.

Which of the following is the correct prediction about the frame shift mutation?