Develop examples to explain the difference between

epistasis that produces a 12:4:3 ratio in the F2 offspring and
epistasis that produces a

9:7 ratio in the F2 offspring. Please incorporate genotype and
phenotype into your

explanation. For each example, connect the genotype to the
phenotype (for example,

gene “A” makes a red pigment and gene “B” makes an enzyme that
blocks the red

pigment; therefore A-B- is not red).