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In the field of genetics, an organism’s appearance is referred to as its ____.

A Phenotype
An individual’s genes are segments of DNA that carry hereditary information, and are located on chromosomes. An allele is a variant form of a particular gene. An organism’s genotype is its inherited combination of alleles. An organism’s phenotype is the expression of the alleles, or its appearance.
B Genes
C Alleles
D Genotype