There are __________ different types of olfactory receptors in humans. approximately 350 20 4 approximately 10,000
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Olfactory receptors are specialized proteins located in the nasal cavity that detect odor molecules and send signals to the brain, allowing us to perceive smells. Show more…
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The central nervous system (CNS) of a mouse can discern 100,000 different odors. If a different receptor were required to detect each odor, how many receptors would the mouse need to detect these many odors? The mouse olfactory epithelium possesses but 1000 different receptors. What are two neural mechanisms that the mouse may use to detect these many odors with such few receptors? Supposing the mouse had only 10 different receptor neurons, and supposing that a given odor was coded by a unique combination of these 10 neurons firing, would 10 receptors be sufficient to code 100,000 odors? Why?
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Humans express around 400 different olfactory receptors; this is theorized to allow us to recognize tens of thousands (if not more) different odourants. This contention is supported by all of the following except: a. The same receptor can be activated by many different odourants b. Different odourants can have a combinatorial effect by activating a variety of different olfactory receptors c. Some odourants may bind with greater or less affinity to individual olfactory receptors. d. Olfactory glomeruli receive inputs from many types of olfactory receptor cell
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A diploid organism with a haploid chromosome number of 20 will produce ________ combinations of chromosomes at the end of meiosis. 4.4 X 1012 7.04 Ă— 1013 1048576 1024 8388608
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