Final answer:
Genotype refers to the combination of alleles in an individual. It represents the genetic makeup of an organism for a particular gene. Genotype plays a crucial role in determining the characteristics expressed by an organism, which is known as its phenotype.
Step-by-step explanation:
Genotype refers to the combination of alleles in an individual. It represents the genetic makeup of an organism for a particular gene. Each gene has two alleles, one from each parent, and these alleles can be the same or different.
An organism with two alleles of the same type is called a homozygote, while an organism with two different alleles is called a heterozygote. Genotype plays a crucial role in determining the characteristics expressed by an organism, which is known as its phenotype.