In a group of horses, some individuals have a black coat and others have a reddish-brown coat. In this group, the gene for the coat color trait has two alleles. The allele L is for a black coat, and the allele l is for a reddish-brown coat.
Major, a horse from this group, has a black coat. Major has one allele for a black coat and one allele for a reddish-brown coat.
Based on this information, what is Major's genotype for the coat color gene?