Answer:
There are different versions of genes and each version is called an allele. For every gene, you inherit two different alleles. One allele comes from your biological father and one from your mother. Together, these alleles are called a genotype.
If the two versions are different, you have a heterozygous genotype for that gene. For example, being heterozygous for hair color could mean you have one allele for red hair and one allele for brown hair.
Explanation: ya boi