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Nezavi [6.7K]
3 years ago
10

Proteins play key roles in olfaction. One kind of protein, called ___________, attaches itself to hydrophobic odorant molecules

so that they may dissolve in watery mucous. A second class of proteins, to which odorant molecules become bound and initiate transduction, are coded by the largest family of genes in mammals and are called ___________ . Group of answer choices
Biology
1 answer:
hichkok12 [17]3 years ago
6 0

Answer:

The correct answer is "Odorant-binding proteins (OBPs); Olfactory receptors (ORs)".

Explanation:

Odorant-binding proteins (OBPs) are low-molecular soluble molecules that are secreted in high amounts in the nasal mucus layer. The precise biological activity of OBPs remains unclear, however, its solubility and ability to attach to hydrophobic odorant molecules suggest that they acts as carriers. A second class of proteins called olfactory receptors (ORs), act at the genetic level by initiating transduction once odorant molecules attach to them. ORs are coded by the largest family of genes, which include more than 100 genes and pseudogenes that represent around 3% of the genome.

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