But being homozygous is something that doesn't determine if it is recessive or dominant.I have to disagree with this just a bit. The recessive or dominate nature of a gene is determined by the point in which its visual effect is seen. So only being seen in a homozygous form would be what is classed as a recessive gene.
Not making any point on any specific gene here or anything. Just saying that is what determines the type of gene
That's exactly what I was saying.. you can tell in the f1 cross if it is dominant or recessive by whether or not it expresses itself at all! Which means it is the heterozygous form that determines if it is recessive or dominant.. It is not the homozygous form that determines this.. So thus the gt gene is considered a dominant gene.. Even if you call it co-DOMINANT, it is still DOMINANT and not a recessive gene, as you initially called it..