If the dominant allele is t and the recessive allele ("non-taster") is n, than tn and tt are the genotypes of a "taster". tn is heterozygous and tt is dominant homozygous. nn is the genotype of a "non-taster" and it is recessive homozygous.
Sensory,internueron and motor are the names. The nervous system<span> has </span>three<span> basic functions: sensory</span>neurons<span> receive information from the sensory.</span>
