Earlobe type is PHENOTYPE, that is coded by a person's GENOTYPE. The genotype refers to a team of genes in a person that is responsible for the expression of a particular trait. For instance, a genotype is responsible for the height of a person, whether the person is short or tall depends on the particular genotype that controls the height trait. Phenotype refers to the physical characteristics or physical manifestations of a particular trait. For instance, tallness is a phenotype, it is a physical expression of the genotype that controls height. In the same way, earlobe type is a phenotype that is determined by a person's genotype.
The answer to the question that is being presented above would be the phrase 'Mendel's law of inheritance'. <span>Family pedigrees are based on scientific evidence that is described by Mendel's law of inheritance. The other choices do not describe the statement better.</span>
