Mendel continued his experimentation where he looked at two traits. These two trait crosses are called dihybrid crosses. While the monohybrid cross would yield 3:1 ratios of the phenotypes, the dihybrid crosses would yield 9:3:3:1 ratios of all the combinations of each phenotype.
![](https://github.com/jeremyseto/bio-oer/blob/master/figures/genetics/dihyb-1024x845.png?raw=true)
Each parent plant gamete formation may result in four genetic combination following meiosis.