* Buckskin: The foal inherits the buckskin coat from its sire.
* Gray: The foal inherits the gray coat from its dam.
* Roan: If the gray mare carries the roan gene, the foal could be a roan.
* Bay: If the mare carries the bay gene, the foal could be a bay.
* Black: If the mare carries the black gene, the foal could be black.
Here's why:
* Buckskin: Buckskins have a base coat of yellow or gold with a black mane and tail. This color is determined by the "Ee" gene.
* Gray: Grays have a white base coat that gradually turns white as they age. This color is determined by the "G" gene.
* Other Colors: Both the buckskin stallion and gray mare could carry hidden genes for other colors. For example, the mare might carry the gene for bay or black, which could be expressed in the foal.
It's impossible to predict the foal's color with absolute certainty without knowing the full genetic makeup of both parents.