by Greg Green
Partial dominance
Now that we have explained the basics of dominant and recessive, you can move on to the next step.
Some gene loci in plants have more than two possibilities. These are sometimes referred to as ‘partially dominant genes’ and are usually given some type of secondary marker such as B’ or B”.
They work just like dominant and recessives except that there are more than two options. If a gene is dominant over another gene, it will win. Just like a dominant will win a recessive.