Phenotypes (characteristics) NOT THE ALLELES
Receptors in the nose are olfactory receptors and they are the things that basically give you the ability to smell different smells.
Receptors kind of allow you to feel or smell or hear etc.
Receptors in the taste buds are simply taste receptors, they help you taste different foods and such.
Answer:
Viruses are considered to be non-living because they arent
Answer: Silent mutations occur when the change of a single DNA nucleotide within a protein-coding portion of a gene does not affect the sequence of amino acids that make up the gene's protein. ... And when the amino acids of a protein stay the same, researchers believed, so do its structure and function.