A neurotransmitter that binds to a postsynaptic cell and opens K+ channels:

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#Question id: 3302

#Unit 11. Evolution and Behavior

Thorn of Bougainvillea and the tendrils of Cucurbita represent a case of

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#Question id: 23898

#Unit 13. Methods in Biology

In the human genome, one centimorgan or a 1 percent recombination frequency represents, on average, a distance of about

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#Question id: 1238

#Unit 4. Cell Communication and Cell Signaling

Which of the following can lead to loss-of-heterozygosity in a tumor-suppressor gene?

a. deletion of the normal copy                       

b. non dysjunction during mitosis

c. somatic mutation of the normal copy

d. mitotic recombination between a wild-type and mutant allele

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#Question id: 13098

#Unit 13. Methods in Biology

You are a scientist who is using genomics to currently study a new bacterial species that no one has ever studied before. The following sequence is a piece of DNA within the coding region of a gene that you have recently sequenced.

 

How many of the 6 potential open reading frames are actually open in this sequence shown above?

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#Question id: 12027

#Unit 7. System Physiology – Animal

If you place a small piece of a cracker on your tongue, what would you expect to happen?