Concept:In monohybrid inheritance, the genotype of an organism is classified by whether the two alleles for a single gene are the same or different.
Explanation:A monohybrid cross involves the inheritance of only one particular gene.
Every diploid organism carries two alleles for that gene, one inherited from each parent.
When the two alleles are identical, the organism is said to be homozygous.
When the two alleles are different, the organism is said to be heterozygous.
In a heterozygous individual, one allele is usually dominant while the other is recessive.
However, the term that specifically describes an organism carrying two different alleles for a gene is heterozygous.
Answer:C. Heterozygous